Abbas, R., and M. R. Abd Kadir. “Customers’ Preferences Toward Shariah Compliant Services in Banks Among Academicians and Non-Academicians in Higher Education Institutions (HEIs) in Pahang”. The Journal of Muamalat and Islamic Finance Research, vol. 10, no. 1, Jan. 2013, pp. 107-24, https://jmifr.usim.edu.my/index.php/jmifr/article/view/156.