Development of Overhead Serve Learning Media in Volleyball Using Canva. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 18, n. 1, p. 0365–0378, 2026. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/525. Acesso em: 10 feb. 2026.