S. E. Z. . MOHD ZULKIFLY, M. H. . MOHD HASHIM, and N. . AHMAD, “VISUAL FUNCTIONS IN PEDIATRICS, ADULTS AND ELDERLY IN BANDAR INDERA MAHKOTA, KUANTAN, PAHANG: A COMPARISON STUDY”, Inter. J. All. Heal. Sci., vol. 4, no. 1, pp. 1099–1109, Feb. 2020.