“KAJIAN YURIDIS SUMBER-SUMBER HUKUM : Studi Normatif”. Al-Iqtishadiah: Jurnal Hukum Ekonomi Syariah, vol. 2, no. 2, Oct. 2021, pp. 155-6, https://doi.org/10.22373/iqtishadiah.v2i2.1409.