Madjid, S. S., Hasanuddin, H., Nurwahidin, P. and Masuwd, M. (2026) “Integration of Sharia Legal Principles into National Commercial Law System: A Comparative Study between Fiqh Books and Indonesian Civil Code”, Jurnal Hukum IUS QUIA IUSTUM, 33(1), pp. 1–15. doi: 10.20885/iustum.vol33.iss1.art1.