M. I. S. Zulkepli and M. T. Mohamad, “Analisis Hiyal Dalam Produk Deposit Berasaskan Kontrak Tawarruq di Perbankan Islam Malaysia: Hiyal Analysis in Deposit Product based on Tawarruq Contract in Malaysian Islamic Banking”, RIS, vol. 6, no. 1, pp. 43–59, Mar. 2019.