Thechawattanapanicharoen T, Ekkaphan M. The Influence of Reference Group on Consumers Decision to Purchase Big Bikes in Roi Et Province. J Roi Et [Internet]. 2021 Apr. 28 [cited 2024 May 5];15(1):63-74. Available from: https://so03.tci-thaijo.org/index.php/reru/article/view/241776