Kholis Firmansyah, “Urgensi Penerapan Syariah dalam Bisnis Jasa Konstruksi”, Jurnal At-Tahdzib, vol. 3, no. 2, pp. 100–120, Apr. 2017, Accessed: Sep. 06, 2026. [Online]. Available: https://ejournal.staiat-tahdzib.ac.id/index.php/tahdzib/article/view/81