A. Ismaeel, Reyadh. “Leading Indicators of De Cobertan The Founder of Modern Olympic Games”. Al-Rafidain Journal For Sport Sciences 20, no. 64 (April 1, 2014): 336–356. Accessed November 17, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50307.