Yaacob, S. E., S. Ahmad, and W. N. Wan Mohd. Zabaria. “Mata Wang Dan Krisis Ekonomi Dunia: Kewajaran Penggunaan Semula Matawang Emas”. The Journal of Muamalat and Islamic Finance Research, vol. 8, no. 1, Jan. 2011, pp. 187-0, https://jmifr.usim.edu.my/index.php/jmifr/article/view/138.