อัตไพบูลย์ ภ. Economic Linkages among Border Provinces in the South of the Lower Northeastern Region. Pitchayatat [internet]. 2020 Aug. 26 [cited 2025 Apr. 17];15(2):125-37. available from: https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/229701