1. Alfred, S. D. Y., (2000). “Effect of Socio-Economic Characteristics of Farmers in Food Crop Marketing in Yagba East Local Government Area of Kog State,” in Agricultural Extension and Poverty Alleviation in Nigeria: Proceeding of the 6th Annual National Conference of Agricultural Extension society of Nigeria, T. A. Olowu, Ed., 151-156.
2. Andam, K., Makhija, S. & Spielman, D., (2019). Evaluation of the Impact of a Soil Fertility Training Project on Farm Productivity in the Volta Region of Ghana. International Initiative for Impact Evaluation, (3ie) Grantee. Final Report.
3. Asante, B.O., Wiredu, A.N., Martey, E., Sarpong, D.B., and Mensah- Bonsu, A. (2014).NERICA Adoption and Impacts on Technical Efficiency of Rice Producing Households in Ghana: Implications for Research and Development. American Journal of Experimental Agriculture. 4 (3): 244- 262
4. Azumah, S. B & Zakaria, A., (2019). Fertilizer Subsidy and Rice Productivity in Ghana: A Microeconomics Study. Journal of Agricultural Studies. Vol. 7(1), 82-102.
5. Baba. (2015). Personal Communication.