Bisyarah, Sania, and Sri Novi Elizabeth S. “Calculation of Pension Funds for TNI Group IIIA Using the Individual Level Premium Method”. International Journal of Mathematics, Statistics, and Computing 2, no. 3 (August 2, 2024): 117–126. Accessed October 2, 2025. https://ejournal.corespub.com/index.php/ijmsc/article/view/117.