Ondabu , N., R. Kenana, J. Mwangi, K.R.G. Irungu, K. Changwony, J.K. Kitilit, and B. Mugo. 2014. “ Effect of Planting Method on Sweet Potato Vine Dry Matter Yield ”. African Journal of Education,Science and Technology (AJEST) 1 (4):pp 175-178. http://ajest.org/index.php/ajest/article/view/382.