Meenongwah, Suchao, and Asst. Prof. Dr. Chuthamas Chompha. 2019. “An Appropriate Institutionalization and Model in the Existence of the Sub-district Chief and Village Headman in Attitude of Key Personnel of Ubon Ratchathani’s Sub-district Municipality”. Journal for Developing the Social and Community 6 (1). Bangkok, Thailand:441-54. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211925.