ALI FATTAH RASHID AL-OBAIDI; KHALID ABDLMAGID ABDALHAMEED ALKHATEEB. The Effect Of Progressive Activity Exercises On Developing Positive Thinking And Learning Some Basic Volleyball Skills. Journal of Education and Sport Science, [S. l.], v. 7, n. 2, p. 199–212, 2026. DOI: 10.31942/jess.v7i2.17320. Disponível em: https://publikasiilmiah.unwahas.ac.id/JESS/article/view/17320. Acesso em: 4 sep. 2026.