Ogbologwung, L.P. “Effect of Plant Spacing and Variety on Weed and Performance of Orange-Fleshed Sweet Potato in Humid Agro-Ecological Zone of Nigeria”. Uganda Journal of Agricultural Sciences 17, no. 1 (January 1, 2016): 11–20. Accessed May 19, 2024. http://journal.naro.go.ug/index.php/ujas/article/view/168.