Tanasoontrarat, P. ., T. Ackapolpanich, N. Kong-ngoi, and chalermkwan phuvoravan. “A Comparison of Five Conducting Media for Length Determination of Electronic Apex Locator Using a Simulation Model”. Khon Kaen University Dental Journal, vol. 24, no. 1, Mar. 2021, pp. 76-82, https://he01.tci-thaijo.org/index.php/KDJ/article/view/240892.