HAMED AL- AL-SWEEDE, A.; احمد. The Effect of Using the Fixed and Variable Exercise Scheduling on Developing Some Basic Volleyball Skills. Al-Rafidain Journal For Sport Sciences (RJSS), [S. l.], v. 24, n. 75, p. 26–43, 2025. DOI: 10.33899/rjss.2021.169799. Disponível em: https://ojs.uomosul.edu.iq/index.php/rjss/article/view/10708. Acesso em: 4 aug. 2025.