Zakarneh, Ismael, Ahmad Nassar, Ghait Nassef, and Husein Qadoumi. “Evaluation of the Opinions of Volleyball Experts Toward the Application of the Pro-Fessional System in West Bank Clubs”. Palestine Technical University Research Journal 8, no. 3 (December 1, 2020): 40–60. Accessed November 24, 2024. https://rj.ptuk.edu.ps/index.php/pturj/article/view/112.