Amin, F. ., A. . Rehman, and S. . Azizudin. “Spectrophotometric Assessment of Color Changes of Heat Cure Acrylic Resins After Exposure to Commonly Consumed Beverages”. Journal of the Dow University of Health Sciences (JDUHS), vol. 8, no. 2, July 2014, pp. 62-66, https://jduhs.com/index.php/jduhs/article/view/1453.