Siriwararuk , R. and Rungkoon, A. (2021) “Customer Service Quality Development Approach of Tmbthanachart Bank, Roi-Et Branch”, Journal of Modern Learning Development, 7(1), pp. 313–331. available at: https://so06.tci-thaijo.org/index.php/jomld/article/view/251785 (accessed: 4 October 2026).