Davit Long Edisyah, Ladipin, Afrizal. THE EFFICACY OF STRUCTURED DEFENSIVE TECHNIQUE TRAINING ON ENHANCING DEFENSIVE CAPABILITIES IN VOLLEYBALL AMONG NINTH-GRADE STUDENTS AT SMPN 1 KUTACANE. IJSET [Internet]. 2025 Jun. 29 [cited 2026 Apr. 28];4(7):4013-8. Available from: https://ijset.org/index.php/ijset/article/view/1279