Al Freadman Koa, Apryadno Jose, Sitti syamsiah, I Kade Wijaya, and Andi Annas. “Effectiveness of Exercise App With Self-Efficacy to Achieve Recommended Levels of Physical Activity Among Adult: A Systematic Review ”. KnE Life Sciences 4, no. 13 (October 9, 2019): 176–184. Accessed April 16, 2024. https://knepublishing.com/index.php/KnE-Life/article/view/5239.