Sulistiani, Ursula, Wimpie Pangkahila, & Alex Pangkahila. " Administration of Creatine Monohydrate® increased the estrogen levels but have no effect on testosterone levels in male albino rats (rattus norvegicus) with moderate physical activity." IJAAM (Indonesian Journal of Anti-Aging Medicine) [Online], 3.2 (2019): 43-46. Web. 16 Dec. 2019