In vitro effects of gibberellic acid and sucrose concentration on micropropagation of two elite sweet potato cultivars in Rwanda - Ndagijimana, V.; Kahia, J.; Asiimwe, T.; Sallah, P.Y.; Waweru, B.; Mushimiyimana, I.; Ndirigwe, J.; Sindi, K.; Shumbusha, D.; Njenga, P.; Kouassi, M.; Koffi, E. (Academic Journals, 2014)