Mardison, Eri. “A Change to Improve Health Quality: Benefits of the Human Opportunity Index (HOI)”. JURNAL MUTIARA KESEHATAN MASYARAKAT 5, no. 2 (January 8, 2021): 45–53. Accessed December 22, 2024. https://e-journal.sari-mutiara.ac.id/index.php/JMKM/article/view/1469.