Gusfiani, Amelia, Wilda Welis, Anton Komaini, Zulbahri Zulbahri, Dally Rahman, and Fiky Zarya. “Effectiveness of High-Altitude Environments on Cardiovascular Ability: A Literature Review”. Jurnal Penelitian Pendidikan IPA 9, no. SpecialIssue (December 31, 2023): 240–247. Accessed September 27, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/8544.