Hashim, Ahmad, Azli Ariffin, Abdul Talib Hashim, and Abu Bakar Yusof , trans. “Reliability and Validity of the 90º Push-Ups Test Protocol”. International Journal of Scientific Research and Management (IJSRM) 6, no. 06 (June 6, 2018): PE–2018. Accessed July 1, 2025. https://ijsrm.net/index.php/ijsrm/article/view/1540.