A. Jimoh, T. Olawuyi, G. Omotoso, A. Oyewopo, and J. Dare, “Semen Parameters and Hormaone Profile of Men Investigated for Infertility at Midland Fertility Centre, Ilorin, Nigeria”, J. Basic Appl. Sci., vol. 8, no. 1, pp. 110–113, Jan. 2012.