Cerda-Hernández, J., and A. Sikov. “Lee-Carter Method for Forecasting Mortality for Peruvian Population”. Selecciones Matemáticas 8, no. 01 (July 29, 2021): 52 - 65. Accessed January 18, 2025. https://revistas.unitru.edu.pe/index.php/SSMM/article/view/3702.