Sijabat, Masdiana. “The Relationship Between Extra-Curricular Activities and Learning Creativity of Junior High School Students”. International Journal of Curriculum Development, Teaching and Learning Innovation 2, no. 1 (November 30, 2023): 11–21. Accessed May 26, 2026. https://trigin.pelnus.ac.id/index.php/Curriculum/article/view/144.