شريف معتز بالله. “A Comparative Study of Maximum Aerobie Speed in Professional First Division of Footballers by Three Lines of Play ( Defense , Midfield , Attack ) . Field Study of USBiskra Senior Team ”. sports creativity 12, no. 04 (December 15, 2025): 216–238. Accessed December 23, 2025. https://journals.univ-msila.dz/index.php/JOSC/article/view/1128.