ไสยรส ร.; สุทธิศัย ว. Potential Factors Affecting the Competitiveness of Thailand Post in Roi - Et Province. Journal of Roi Et Rajabhat University, [S. l.], v. 13, n. 1, p. 138–150, 2019. Disponível em: https://so03.tci-thaijo.org/index.php/reru/article/view/186028. Acesso em: 20 apr. 2024.