Musa, A., I. . Binti Ilyas, and B. . Khalidin. “HE ONCEPT F AX N HE ERSPECTIVE F BU BAID elevance ith he ax ystem n ndonesia”. l-qtishadiah: urnal ukum konomi yariah, vol. 4, no. 1, June 2023, pp. 72-95, doi:10.22373/iqtishadiah.v4i1.3003.