“Relationship Between Student-Centered Learning, Physical Education Dagogical Approach And Badminton Service Skill Improvement Among Senior High School Students” (2025) COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, 17(3), pp. 3477–3487. Available at: https://competitor.idjournal.eu/index.php/competitor/article/view/591 (Accessed: 19 March 2026).