Keisha Disa Putirama. “Interregional Disparity and Spatial Autocorrelation of Access to Water and Sanitation in Indonesia”. Jurnal Perencanaan Pembangunan: The Indonesian Journal of Development Planning 5, no. 3 (December 23, 2021): 372 - 395. Accessed January 27, 2022. https://journal.bappenas.go.id/index.php/jpp/article/view/233.