Thechawattanapanicharoen, T. . ., & Ekkaphan, M. (2021). The Influence of Reference Group on Consumers Decision to Purchase Big Bikes in Roi Et Province. Journal of Roi Et Rajabhat University, 15(1), 63–74. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/241776