Prasittinawa, Jirayut. “An Evaluation of the Implementation of the Three Doctors Policy in Primary Care Units in Trat Province”. JOURNAL OF LOEI PROVINCIAL PUBLIC HEALTH OFFICE 4, no. 1 (March 31, 2026): 99–117. accessed September 3, 2026. https://he03.tci-thaijo.org/index.php/JOPOLO/article/view/5361.