Pakdethanakul C , Srisubat A , Naovaratsophon A , Nipattasat P , Sompeewong P , Vichathai W. 2019. “Model Development of Appropriate Elderly Dental Services in Thailand: Phonthong Hospital Network, Roi-Et Province”. Journal of The Department of Medical Services 44 (5):139-44. https://he02.tci-thaijo.org/index.php/JDMS/article/view/246666.