Napitupulu, Normalina, Raju Hasudungan, Dila Amanda, and Bebby Sylvia. “Analysis of the Determinants of Eldery Proverty in Indonesia in 2022”. Journal of Research in Mathematics Trends and Technology 4, no. 2 (September 30, 2022): 24-32. Accessed July 22, 2024. https://talenta.usu.ac.id/jormtt/article/view/16916.