B. O. Esonu, R. O. Izukanne, A. B. I. . Udedibie, and N. J. Okuedo, “Nutritional evaluation of differently processed piper (Canavalia plagiosperma) seed meal (CPSM) in broiler starter diets”, NJAP, vol. 42, no. 2, pp. 122–128, Jan. 2021.