T. Amusa, S. Jimoh, I. Azeez, R. Awodoin, and I. Kareem, “Stock density and fruit yield of African walnut, Plukenetia conophora Mull-Arg (Syn. Tetracarpidium conophorum) in tropical lowland rainforests of southwest Nigeria”, JTFE, vol. 4, no. 2, Dec. 2014.