Sangnaimueang, Siriphon, and Karuna Cherdjirapong. “Guidelines for Developing Public Relations Efficiency of Nakhon Ratchasima Municipality, Nakhon Ratchasima Province”. Journal for Developing the Social and Community 9, no. 1 (March 23, 2022): 225–242. accessed March 13, 2025. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/254671.