Ridha, H.M. and Mahmud, M. 2026. Spatial analysis of drought-prone locations using geographic information systems in Hulu Sungai Utara Regency. Indonesian Journal of Innovation and Applied Sciences (IJIAS). 6, 1 (Feb. 2026), 17-34. DOI:https://doi.org/10.47540/ijias.v6i1.2638.