“THE STUDY OF IMPLEMENTATION OF ZAKAT AT JOINT OPERATION ENTITY (BADAN OPERASI BERSAMA) PT. BUMI SIAK PUSAKO- PERTAMINA HULU SIAK REGENCY OF RIAU PROVINCE” (2017) Penamas, 30(2), hlm. 183–194. doi:10.31330/penamas.v30i2.124.