A root a day, everyone everyday Zondeni: an orange fleshed sweetpotato variety for a sustainable vitamin A deficiency reduction in Malawi - Chipungu, Felistus P.; Benesi, I.R.M.; Pamkomera, P.; Moyo, C.C.; Mwenye, O.; Ntawuruhunga, Pheneas; Matchombe, M.; Chilungo, S. (2010)