Harfi, Maula, and Oktofa Yudha Sudrajad. “Business Model And Decision Analysis of Sharia Bullion Bank Implementation at PT Bank Syariah Indonesia TBK”. KOLONI 5, no. 3 (August 19, 2026): 2180–2187. Accessed October 20, 2026. https://koloni.or.id/index.php/koloni/article/view/1123.