P. B. Ekpo, U. U. Uno, H. O. Ogbe, and U. B. Ekaluo, “Effect of Sweet Potato (Ipomoea batatas) Tuber on Sperm Profile and Testicular Integrity of Male Albino Rats”, Arch. Curr. Res. Int., vol. 9, no. 2, pp. 1–7, Aug. 2017.