Okeke, A. P. (2019). Profit efficiency of sweet potato production in Kwara State, Nigeria. Obafemi Awolowo University.
Lua i Stíl Chicago (17ú heag.)Okeke, Amaka Patience. Profit Efficiency of Sweet Potato Production in Kwara State, Nigeria. Obafemi Awolowo University, 2019.
Lua MLA (9ú heag.)Okeke, Amaka Patience. Profit Efficiency of Sweet Potato Production in Kwara State, Nigeria. Obafemi Awolowo University, 2019.
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