Abidin, A. Z., N. M. Alwi, and N. M. Ariffin. “A Case Study on the Implementation of Qardhul Hasan Concept As a Financing Product in Islamic Banks in Malaysia”. International Journal of Economics, Management and Accounting, vol. 19, no. 3, Jan. 2013, doi:10.31436/ijema.v19i3.201.