M. Indrawan Nur Huda, Agus Trijono, and Anton Susanto. “Implementasi Marketing Mix Di Rumah Sakit PKU Muhammadiyah Sukoharjo”. Journal of Educational Innovation and Public Health 2, no. 4 (October 4, 2024): 63–90. Accessed February 28, 2026. https://prin.or.id/index.php/Innovation/article/view/3234.