Ningsih, Yurni, Happy Fitria, and Mulyadi Mulyadi. “School Health Business Management”. Journal of Social Work and Science Education 3, no. 3 (December 5, 2022): 321–329. Accessed May 25, 2026. https://ejournal.sembilanpemuda.id/index.php/jswse/article/view/408.