Hanifa, Syifa, Diana Puspitasari, Cahyadi Ramadhan, and Karina Oriza Herastuti. “COVID-19 Vaccine Prioritization Based on District Classification in Yogyakarta Province, Indonesia”. Geospatial Health 17, no. s1 (January 14, 2022). Accessed November 22, 2024. https://www.geospatialhealth.net/gh/article/view/1010.