The Impact of Using the Gradual (Self-Taught) Method in Teaching Some Basic Volleyball Skills to First-Year Students in the Department of Physical Education and Sports Sciences. College of Basic Education Research Journal, [S. l.], v. 22, n. 2.5, p. 269–282, 2026. DOI: 10.33899/berj.2026.Vol22.Iss2.5.64097. Disponível em: https://berj.uomosul.edu.iq/index.php/berj/article/view/64097. Acesso em: 4 jul. 2026.