“Comparative Evaluation of Antioxidative Properties and Effects of Aqueous Extracts of Cola Nitida and Vitex Doniana on Fe2+ - Generated Oxidative Stress in Rat Testes in Vitro”. The International Journal of Biotechnology, vol. 5, no. 2, Aug. 2016, pp. 15-25, https://doi.org/10.18488/journal.57/2016.5.2/57.2.15.25.