Perdana, H., N. Satyahadewi, D. Kusnandar, and R. Tamtama. “MULTI-STATE MODEL FOR CALCULATION OF LONG-TERM CARE INSURANCE PRODUCT PREMIUM IN INDONESIA”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 16, no. 4, Dec. 2022, pp. 1293-02, doi:10.30598/barekengvol16iss4pp1293-1302.