“The Relationship Between Knowledge Levels about Osteoporosis and Physical Activity in Adolescents As an Early Prevention Effort”. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga 18, no. 1 (May 1, 2026): 1129–1139. Accessed May 25, 2026. https://competitor.idjournal.eu/index.php/competitor/article/view/493.