Olobatoke, R. Y., and J. A. Oloniruha. “HAEMATOLOGICAL ASSESSMENT OF BITTER LEAF (VERNONIA AMYGDALINA) EFFICIENCY IN REDUCING INFECTIONS IN COCKERELS”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 6, May 2009, pp. 472-3, https://journals.athmsi.org/index.php/ajtcam/article/view/921.