Rungrojanarak, S. and Peampring, C. (2020) “Effect of Field of Views and Gingival Display with Upper Lip Length on Smile Esthetic Perception”, Khon Kaen University Dental Journal, 23(3), pp. 52–65. Available at: https://he01.tci-thaijo.org/index.php/KDJ/article/view/242654 (Accessed: 4 May 2024).