ADNAN ALBAYYATI, O.; HAFITH SHIHAB, M. The effect of using the round robin in learn the art of performing some volleyball skills and developing the tendency towards physical education for secondary students. Al-Rafidain Journal For Sport Sciences, [S. l.], v. 25, n. 79, p. 180–196, 2022. DOI: 10.33899/rjss.2022.175908. Disponível em: https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50699. Acesso em: 2 oct. 2025.