อัตไพบูลย์ ภ. Economic Linkages among Border Provinces in the South of the Lower Northeastern Region. Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University, [S. l.], v. 15, n. 2, p. 125–137, 2020. Disponível em: https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/229701. Acesso em: 3 may. 2024.