بسلطان حاج, زرف محمد, and علي بن قوة. 2017. “The State of the Process for Selecting Goalkeepers under 17 in Algerian Football: Between the Scientific Basis and Traditional Methods”. Journal of Sport Science Technology and Physical Activities 14 (1):9-29. https://revue.univ-mosta.dz/index.php/jsstpa/article/view/262.