Nurdiana, Fitri, and Arifatul Uyun. “Legalitas Gadai Emas Tanpa Bukti Kepemilikan Tertulis: Komperasi Fiqh Muamalah Dan Kuhperdata Di PT Gadai Mas Unit Lumajang”. RIGGS: Journal of Artificial Intelligence and Digital Business, vol. 5, no. 2, June 2026, pp. 9952-6, doi:10.31004/riggs.v5i2.10257.