Flora, Rostika, Mohammad Zulkarnain, and Sukirno. “β-Endorphin Response to Aerobic and Anaerobic Exercises in Wistar Male Rats”. Medical Journal of Indonesia 29, no. 3 (October 5, 2020): 245–9. Accessed November 21, 2024. https://mji.ui.ac.id/journal/index.php/mji/article/view/3569.