Alba, Charles. “Is the Rural-Access-Index (RAI) a Reflection of Rural and Urban Poverty? A Data Analysis”. International Journal of Social Science and Business 4, no. 4 (October 2, 2020): 422–428. Accessed December 30, 2024. https://ejournal.undiksha.ac.id./index.php/IJSSB/article/view/28665.