Mimma Maripatul Uula, Aam Slamet Rusydiana, Siti Maysyaroh SM. Fiqh Contracts for BPJS Ketenagakerjaan Syariah: A Conceptual Approach to Wakalah bil Ujrah, Wakalah bil Istithmar, and Tabarru’. jamsostek [Internet]. 2025 Dec. 31 [cited 2026 Jan. 10];3(2):133-51. Available from: https://jurnalbpjamsostek.or.id/index.php/bpjamsostek/article/view/75