ALDULAIMI, Nahida. The effects of Individual & Collective competition pattern on improving the spike and block skills and their retention in volleyball of the students. Journal of Physical Education, Baghdasd, Iraq., v. 21, n. 2, p. 213–238, 2009. DOI: 10.37359/JOPE.V21(2)2009.723. Disponível em: https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/723.. Acesso em: 19 may. 2024.