Nuraida Fitriani, Umar Al-Haddad, and Abdurrauf, “Asas Perlindungan Konsumen dalam Fikih Muamalah Berdasarkan Kaidah Al-Ashlu Mudhiy Al-Aqd ‘Ala Al-Salamah”, JMS, vol. 11, no. 1, Feb. 2026.