Mawahib, M. Mahdil, and Amrul Muttaqin. “Fatwa Dan Produk Hukum Dalam Perspektif Ushul Fiqh: Analisis Majelis Taujih Wal Irsyad (MTI) Di Lembaga Dakwah Islam Indonesia (LDII)”. Indonesian Journal of Humanities and Social Sciences, vol. 2, no. 3, Nov. 2021, pp. 319-36, https://doi.org/10.33367/ijhass.v2i3.5203.