Bachri, Syaiful, Restidar Soedarto, and Azmi Wijayati. “Cost-Benefit Analysis of Preventive Programs in the National Health System”. International Journal of Health Sciences 4, no. 2 (April 8, 2026): 397–405. Accessed August 28, 2026. https://jurnal.agdosi.com/index.php/IJHS/article/view/1215.