Aerarunchot S, Songphaeng T, Chotipanvidhayakul R, ฺBoonpongsathian N, Runapongsa Saikaew K, Buayai P. Effect of Using Application “PrepLooker” as an Educational Media in Undercut & Convergence Angle of Crown Preparation of 4 th Year Dental Student KKU. Khon Kaen Dent J [internet]. 2021 Aug. 16 [cited 2026 Sep. 16];24(2):42-8. available from: https://he01.tci-thaijo.org/index.php/KDJ/article/view/241435