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, vol. 12, no. 04, Dec. 2025, pp. 216-38, https://journals.univ-msila.dz/index.php/JOSC/article/view/1128.