Napitupulu, N., R. Hasudungan, D. . Amanda, and B. . Sylvia. “Analysis of the Determinants of Eldery Proverty in Indonesia in 2022”. Journal of Research in Mathematics Trends and Technology, vol. 4, no. 2, Sept. 2022, pp. 24-32, doi:10.32734/jormtt.v4i2.16916.