Daud, Dzulsuhaimi, et al. “THE EFFECTS OF COSMOS CAUDATUS AND PIPER SARMENTOSUM AQUEOUS EXTRACTS ON MALE MICE FERTILITY”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 12, Dec. 2015, pp. 296-8, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/8533.