Akib B, MYS MTGAB, Salic JZ. Investigation of Surplus (Deficit) Underwriting of Tabarru’ Fund on BNI Life Insurance Unit Syariah. jmef [Internet]. 2024Jul.25 [cited 2024Dec.21];2(4):130-9. Available from: https://jmef.polteksci.ac.id/index.php/jmef/article/view/44