Thongwan C. The impact of the expansion of Udon Thani Rajabhat University (Sam Phrao Campus). STECOJournal [internet]. 2022 Aug. 10 [cited 2025 May 31];1(2):42-57. available from: https://so07.tci-thaijo.org/index.php/STECOJournal/article/view/1040