Okeke, A. P. (2019). Profit efficiency of sweet potato production in Kwara State, Nigeria. Obafemi Awolowo University.
Chicago-referens (17:e uppl.)Okeke, Amaka Patience. Profit Efficiency of Sweet Potato Production in Kwara State, Nigeria. Obafemi Awolowo University, 2019.
MLA-referens (9:e uppl.)Okeke, Amaka Patience. Profit Efficiency of Sweet Potato Production in Kwara State, Nigeria. Obafemi Awolowo University, 2019.
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