O. Nyamwamu, Ronald, et al. “Effectiveness of Agricultural Training Centers’ Curriculum in Promoting Adoption of Agricultural Technologies: Evidence from Small-Scale Potato Farmers in Nyandarua County, Kenya”. International Journal of Agricultural Management and Development, vol. 4, no. 2, June 2014, pp. 133-45, https://oiccpress.com/ijamad/article/view/6728.