Farizi, Muhammad Fikry Al, et al. “Pemodelan Angka Harapan Hidup Negara G7 Dengan Pendekatan Analisis Regresi Data Longitudinal”. Limits: Journal of Mathematics and Its Applications, vol. 22, no. 1, Mar. 2025, pp. 1-20, doi:10.12962/limits.v22i1.3368.