Dergaa, Ismail, Amit Varma, Sarah Musa, Mokhtar Chaabane, Ali Ben Salem, and Mohamed Saifeddin Fessi. “Diurnal Variation: Does It Affect Short-Term Maximal Performance and Biological Parameters in Police Officers?”. International Journal of Sport Studies for Health 3, no. 2 (January 10, 2021): 19–26. Accessed July 7, 2024. https://journals.kmanpub.com/index.php/Intjssh/article/view/2108.