Monitoring of school wellness based on the effect of volleyball methodology. Research Announcements "Heritage BG", [S. l.], n. 8, p. 94–101, 2025. DOI: 10.58894/AR-HBg.2025.8.94-101. Disponível em: https://periodicals.uni-sofia.bg/index.php/AR-NBg/article/view/3570. Acesso em: 10 mar. 2026.