Ikhsanudin, M. R. ., and E. . Pasaribu. “Modeling the Percentage of Poor Population in Java Island Using Geographically Weighted Regression Approach”. Jurnal Matematika, Statistika Dan Komputasi, vol. 20, no. 1, Sept. 2023, pp. 229- 244, doi:10.20956/j.v20i1.27804.