Hamdani, Muhammad Zeeshan Haider, Jie Zhuang, Ghufran Hadier, Wang Tian, Danish Haider Hamdani, Shaista Shireen, Urooj Fatima, and Sadaf Kazmi. 2022. “NORMATIVE REFERENCE STANDARD FOR CORE MUSCULAR ENDURANCE OF ADOLESCENT 12-16 YEARS FROM SOUTH PUNJAB PAKISTAN: A CROSS-SECTIONAL STUDY”. Pakistan Journal of Physiology 18 (1):3-8. https://pjp.pps.org.pk/index.php/PJP/article/view/1440.