SIVRI, S.; ÖZBEK, O. Opinions of Tennis Umpires on in-service education umpires<p>Tenis Hakemlerinin hizmetiçi eğitimlerine ilişkin görüşleri. Journal of Human Sciences, [S. l.], v. 15, n. 4, p. 1791–1806, 2018. Disponível em: https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/4644. Acesso em: 17 may. 2024.