Sopian, Pian, et al. “Sharia Compliance of Digital Gold Installment Transactions: A Fiqh Muamalah Perspective from Tangsimekar Village, Indonesia”. International Journal of Sustainable Social Science (IJSSS), vol. 4, no. 3, July 2026, pp. 235-54, doi:10.59890/ijsss.v4i3.259.