Dergaa, Ismail, Amit Varma, Sarah Musa, Mokhtar Chaabane, Ali Ben Salem, and Mohamed Saifeddin Fessi. 2021. “Diurnal Variation: Does It Affect Short-Term Maximal Performance and Biological Parameters in Police Officers?”. International Journal of Sport Studies for Health 3 (2): 19-26. https://doi.org/10.61838/kman.intjssh.3.2.4.