Risdiana, Nurvita, Syahruramdhani Syahruramdhani, and Armain Suwitno. “The Physical Fitness Level, Heart Rate, and Heart Rate Recovery Among Adolescent Smokers and Non-Smokers”. Open Access Macedonian Journal of Medical Sciences 9, no. T4 (March 1, 2021): 101–105. Accessed April 19, 2024. https://oamjms.eu/index.php/mjms/article/view/5805.