Hayati, Alfiah. “EFEK AMFETAMIN TERHADAP ULTRASTRUKTUR SEL SPERMATOGENETIK TIKUS”. Berkala Penelitian Hayati 6, no. 2 (October 29, 2014): 139. Accessed June 17, 2026. https://new.berkalahayati.org/index.php/jurnal/article/view/497.