Alawa DA (2015). Appraisal of the integration of environmental and sustainable development themes into agricultural education and extension programmes in Cross River State. PhD thesis submitted to the Department of Vocational Teacher Education, University of Nigeria, Nsukka.

Alawa DA (2016). Challenges and strategies for enhancing the inclusion of environmental and sustainable development themes in University agricultural education and training programmes. International Journal of Educational Administration Planning and Research 8(1):30-44.

Alawa DA, Udida LU (2015). Entrepreneurial skills required by women retirees for success in melon production enterprise in Cross River State, Nigeria. International Journal of Educational Administration Planning and Research 7(1):66-81.

Anderson K (2000). (Ed). Distortions to agricultural incentives from a global perspective 1955-2007; World Bank.

Arokoyu SB, Ibani BG (2004). Environmental regulations and the Nigeria environment: Focus on Federal Environmental Protection Agency (FEPA) JOGET 6(1 &2).

Borak M, Peak B (2013). Sustainable development law and policy: Exploring how today's development affects future generations around the globe XIII (1). Retrieved from 

View

Davis LL (1992) Instrument review: Getting the most from a panel of experts. Applied Nursing Research 5(4):194-7.
Crossref

Federal Republic of Nigeria (2013). National policy on education. Lagos: NERDC Press.

Food and Agricultural Organization (FAO) (2011). The state of the world's land and water resources for food and agriculture: Managing the risks. Rome: FAO

Gordon R (2012). Individuals, liberty, environment: Challenging the foundations of the green establishment. Washington D.C: The Heritage Foundation.

Lincoln YS, Guba EG (1985). Naturalistic inquiry. Newbury Park, CA: Sage.
Crossref

Maguire JC (2000). Agricultural education in Africa: Managerial change. A paper prepared for Workshop 2000; Sponsored by the Sasakawa Africa Association Accra and Cape Coast Ghana.

Makinde T (2005). Problems of policy implementation in developing nations: The Nigerian Experience. Kamla-Raj.
Crossref

McNeely JA, Scherr SJ (2001). Common ground, common future. How agriculture can help feed the world and save wild biodiversity, Rome: FAO.

Ndubuisi-Okolo P, Anekwe IE, Attah E (2016). Waste management and sustainable development in Nigeria: A Study of Anambra State waste management agency. European Journal of Management 8(17):132-142.

Ogujiuba K, Ehigiamusoe UK, Udefuna P (2013). The challenges and implications of sustainable development in Africa: Policy options for Nigeria. Journal of Economic Cooperation and Development 34(4):77-112.

Olaitan SO (2017). Policy initiatives for making agricultural education effective in the diversification of the economy of the nation. Journal of Agricultural Education Teacher's Association of Nigeria 1(1):8-15.

Onakuse S, Eamon L (2007). Policies, programmes and sustainable development in Nigeria: A critique. African Journal of Political Science and International Relations 1(1): 41-58.

Osinem EC (2005). Environmental education in agriculture. Enugu: Cheston Agency Ltd.

Pretty JN (2002). Agriculture: Reconnecting people, land and nature. London: Earth Scan.

Ubleble BA, Gbenemene K (2017). A Critique on Nigeria national policy on environment: Reasons for policy review. International Journal of Geography and Environmental Management 3(3):23-36

United Nations (1992). Agenda 21: Global programme of action on sustainability. Geneva: United Nations.

Von Bertanffy L (1968). Systems theory in community development. New York: George Brazilier.

Wonah EI (2017). The state, environmental policy and sustainable development in Nigeria. Global Journal of Arts, Humanities and Social Sciences 5(5):25-40.

World Bank (2012). Agricultural innovation systems: An investment source book. Washington, DC: World Bank.