Bahdar, B., Juraid, J., & Syahid, A. (2022). Implementation of Mastery Learning in Improving Student’s Understanding of Islamic Religious Education Subjects at SMA Negeri 2 Sigi. International Journal of Health, Economics, and Social Sciences (IJHESS), 4(2), 77-90. https://doi.org/10.56338/ijhess.v4i2.2350