Makful, M. R., Risma, Eryando, T., Arsyad, D. S. and Argianto (2023) “A Spatial Model of the Social Vulnerability Index for Vaccine COVID-19 in Java, Indonesia”, Journal of Population and Social Studies [JPSS], 31, pp. 745–761. available at: https://so03.tci-thaijo.org/index.php/jpss/article/view/264176 (accessed: 6 October 2026).