Sitanggang, Agnes Miranda, et al. “Estimasi Cadangan Premi Asuransi Jiwa Berjangka: Penerapan Metode Gross Premium Valuation (GPV)”. Innovative: Journal Of Social Science Research, vol. 4, no. 6, Nov. 2024, pp. 982-91, doi:10.31004/innovative.v4i6.16031.