Waleleng BJ, Takaendengan D, W NT. Gastroesophageal Reflux Disease in Push Up and Sit Up Exercise. InaJGHE [Internet]. 2007 Jan. 4 [cited 2026 Oct. 18];8(1):10-5. Available from: https://www.ina-jghe.com/index.php/jghe/article/view/181