Abdul Wahab, Hishamuddin. “Investigating the Influence of Shariah Compliance on the Level of Currency Exposure Across Time Scales: An Application of Wavelet Approach”. MATEMATIKA: Malaysian Journal of Industrial and Applied Mathematics 37, no. 1 (April 29, 2021): 1–13. Accessed September 18, 2021. https://matematika.utm.my/index.php/matematika/article/view/1279.