Abdulai, A.\r\n& A. CroleRees (2001), “Determinants of Income Diversification amongst\r\nRural Households in Southern Mali”, Food\r\nPolicy, 26(4): 437-452.

Alther, C.,\r\nJ.C. Castella, P. Novosad, E. Rouseau & Tran Trong Hieu (2002), “Impact of\r\nAccessibility on the Range of Livelihood Options Available to Farm Households\r\nin Mountainous Areas of Northern Viet Nam” in J. C. Castella & Dang Dinh\r\nQuang (eds.), Doi Moi in the Mountains:\r\nLand Use Changes and Farmers’ Livelihood Strategies in Bac Kan Province, Viet\r\nNam, Hanoi: Agricultural Publishing House, 121-146.

Barrett,\r\nC.B. & T. Reardon (2001), “Asset, Activity, and Income Diversification\r\nAmong  African  Agriculturalists: Some  Practical Issues”, Food  Policy, 26(4): 315-331.

Barrett,\r\nC., M. Bezuneh, & A. Aboud ( 2001), “Income Diversification, Poverty Traps,\r\nand Policy Shocks in Côte d’Ivoire and Kenya”, Food Policy, 26: 367–384.

Barrett,\r\nC., M. Bezuneh, D. Clay, & T. Reardon (2000), Heterogeneous Constraints, Incentives, and Income Diversification\r\nStrategies in Rural Africa, Broadening Access and Strengthening Input\r\nMarket Systems, Madison, Wisc.: University of Wisconsin.

Barrett,\r\nC.B., T. Reardon & P. Webb (2001), “Nonfarm Income Diversification and\r\nHousehold Livelihood Strategies in Rural Africa: Concepts, Dynamics, and Policy\r\nImplications”, Food Policy, 26: 315-331.

Block, S.\r\n& P. Webb (2001), “The Dynamics of Livelihood Diversification in\r\nPost-Famine Ethiopia”, Food Policy,\r\n26: 333–350.

Carney, D.,\r\nM. Drinkwater, T. Rusinow, K. Neefjes, S. Wanmali & N. Singh (1999), Livelihoods Approaches Compared, paper\r\npresented at the Conference Natural Resources Advisers, UK Department for\r\nInternational Development (DFID).

Castella,\r\nJ. C., & Dang Dinh Quang (eds.) (2002), Doi\r\nMoi in the Mountains: Land Use Changes and Farmers’ Livelihood Strategies in\r\nBac Kan Province, Viet Nam. Hanoi: Agricultural Publishing House.

Castella,\r\nJ. C., Tran Quoc Hoa, O. Husson, Vu Hai Nam, & Dang Dinh Quang (2000), “The\r\nDeclining Role of Ethnicity in Farm Household Differentiation: A Case Study\r\nfrom Ngoc Phai Commune, Cho Don District, Bac Kan Province, Viet Nam” in J. C.\r\nCastella & Dang Dinh Quang (eds.), Doi\r\nMoi in the Mountains: Land Use Changes and Farmers’ Livelihood Strategies in\r\nBac Kan Province, Viet Nam, Hanoi: Agricultural Publishing House.

Davis, J.R.\r\n(2003), The Rural Non-farm Economy,\r\nLivelihoods and their Diversification: Issues and Options, NRI Report to\r\nDepartment for International Development and World Bank no. 2753.

Davis, J.R.\r\n& D. Bezemer (2003), Key Emerging and\r\nConceptual Issues in the Development of  the  RNFE in  Developing  Countries and  Transition Economies, NRI\r\nReport to Department for International Development and World Bank no. 2753.

Delgado,\r\nC., & A. Siamwalla (1997), Rural\r\nEconomy and Farm Income Diversification in Developing Countries, Discussion\r\nPaper No. 20, Markets and Structural Studies Division. Washington, D.C.:\r\nInternational Food Policy Research Institute.

Dercon, S.\r\n(1998), “Wealth, Risk and Activity Choice: Cattle in Western Tanzania”, Journal of Development Economics, 55\r\n(1): 1–42.

Dercon, S.\r\n& P. Krishnan (1996), “Income Portfolio in Rural Ethiopia and Tanzania:\r\nChoices and Constraints”, Journal of\r\nDevelopment Studies, 32(6): 850-875.

Dunn, E.\r\n(1997), Diversification in the Household\r\nEconomic Portfolio, Washington, D.C.: Office of Microenterprise Development,\r\nUSAID.

Ellis, F.\r\n(1998), “Household Strategies and Rural Livelihood Diversification”, Journal of Development Studies, 35(1):\r\n1-38.

Ellis, F.\r\n(2000), Rural Livelihoods and Diversity\r\nin Developing Countries, New York: Oxford University Press.

Ersado, L.\r\n(2003), Income Diversification in Zimbabwe: Welfare Implications from Urban\r\nand Rural Areas, FCND\r\nDiscussion Paper 152, Washington, D.C.: International Food Policy Research\r\nInstitute.

Escobal, J.\r\n(2001), “The Determinants of Nonfarm Income Diversification in Rural Peru”, World Development, 29 (3): 497–508.

FAO (1998),State of Food and Agriculture 1998,\r\nRome: FAO.

Fatoux, C.,\r\nJ. C. Castella, M. Zeiss, & Pham Hung Manh (2002), “From Rice Cultivator to\r\nAgroforester within a Decade: The Impact of Doi Moi on Agricultural\r\nDiversification in a Mountainous Commune of Cho Moi District, Bac Kan Province,\r\nViet Nam” in J. C. Castella & Dang Dinh Quang (eds.), Doi Moi in the Mountains: Land Use Changes and Farmers’ Livelihood\r\nStrategies in Bac Kan Province, Viet Nam, Hanoi: Agricultural Publishing\r\nHouse.

Gulati, A.,\r\nN. Minot, C. Delgado, & S. Bora (2005), “Growth in High-Value Agriculture\r\nin Asia and the Emergence of Vertical Links with Farmers”, The Symposium Toward High- Value Agriculture and Vertical Coordination:\r\nImplications for Agribusiness and Smallholders, National Agricultural\r\nScience Centre, Pusa, New Delhi, March 7, 2005.

Haggblade,\r\nS., P. Hazell & T. Reardon (2002), Strategies\r\nfor Stimulating Poverty-Alleviating Growth in the Rural Non-farm Economy in\r\nDeveloping Countries,  International\r\nFood Policy Research Paper.

Henin, B.\r\n(2002), “Agrarian Change in Vietnam’s Northern Upland Region”, Journal of Contemporary Asia, 32 (1):\r\n3–28.

Joshi, P.\r\nK., A. Gulati, P. S. Birthal, & L. Twari (2003), Agricultural Diversification in South Asia: Patterns, Determinants, and\r\nPolicy Implications, Discussion Paper No. 57, Markets and Structural\r\nStudies Division, Washington, D.C.: International Food Policy Research\r\nInstitute.

Lanjouw, P.\r\n& G. Feder (2001), Rural Non-Farm\r\nActivities and Rural Development: From Experience Towards Strategy, The\r\nWorld Bank’s Rural Development Strategy Background Paper no. 4.

Lanjouw,\r\nJ., & P. Lanjouw (2001), “The Rural Non-Farm Sector: Issues and Evidence\r\nfrom Developing Countries”, Agricultural\r\nEconomics, 26: 1–13.

Minot, N.,\r\nM. Epprecht, T.T.T. Anh & L.Q. Trung (2006), Income Diversification and Poverty in the Northern Uplands of Vietnam,\r\nWashington, DC: International Food Policy Research Institute.

Omamo, S.\r\n(1998), “Transport Costs and Smallholder Cropping Choices: An Application to\r\nSiaya District, Kenya”, American Journal\r\nof Agricultural Economics, 80 (February): 116–123.

Pederson,\r\nG., & M. Annou (1999), “Rural Household Income Diversification in Viet\r\nNam”, Quarterly Journal of International\r\nAgriculture, 38 (2): 140–149.

Reardon, T.\r\n(1997), “Using Evidence of Household Income Diversification to Inform Study of\r\nthe Rural Nonfarm Labor Market in Africa”, World\r\nDevelopment, 25(5): 735-747.

Reardon,\r\nT., J. Berdegué, C.B. Barrett & K. Stamoulis (2007), “Household Income\r\nDiversification into Rural Nonfarm Activities” in S. Haggblade et al. (eds), Transforming the Rural Nonfarm Economy:\r\nOpportunities and Threats in the Developing World (pp. 115-140), Baltimore:\r\nJohns Hopkins University Press.

Reardon,\r\nT., P. Matlon, & C. Delgado (1988), “Coping with Household-Level Food\r\nInsecurity in Drought- Affected Areas of Burkina Faso”, World Development, 16 (9): 1065–1074.

Reardon,\r\nT., C. P. Timmer, & J. A. Berdegue (2003), “The Rise of Supermarkets in\r\nLatin America and Asia: Implications for International Market for Fruits and\r\nVegetables” in A. Regmi & M. Gehlhar (eds.), Global Markets for High Value Food Products, Agriculture\r\nInformation Bulletin, USDA-ERS.

Singh, I.,\r\nL. Squire, & J. Strauss (eds.) (1986), Agricultural\r\nHousehold Models: Extensions, Applications, and Policy, Baltimore: Johns\r\nHopkins University Press.

Start, D.\r\n& C. Johnson (2001), Transformation,\r\nWell-Being and the State: Rural Livelihood Diversification in South Asia,\r\nODI Working paper.

Walle, D.\r\nvan de & D. Cratty (2004), “Is the Emerging Non-farm Market Economy the\r\nRoute Out of Poverty in Vietnam?”, The\r\nEconomics of Transition, 12(2): 237-274.

 Wooldridge,\r\nJ. (2012), Introductory Econometrics,\r\nMIT Press, Cambridge.