ทยาประศาสน์ ธ. The motivations of the operating personnel, local government district, Somrong Ubonratchatani Province. วารสารมหาจุฬาคชสาร, [S. l.], v. 8, n. 2, p. 146–153, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/gajasara/article/view/252660. Acesso em: 16 ก.ย. 2026.