Thaweedej, Sasithorn. “Activity Based Costing of Single Tooth Implant Service in Institute of Dentistry, Department of Medical Services in Fiscal Year 2020”. Journal of The Department of Medical Services 46, no. 2 (September 3, 2021): 132–138. Accessed September 26, 2022. https://he02.tci-thaijo.org/index.php/JDMS/article/view/253572.