Thaworn, W., SanSom, K., & Jaroenchai, K. (2020). Marketing Mix’s and Customer Relationship Management Influencing Decision Making to buy Eco Car in Maha Sarakham Province. Journal of Research and Development Institute Rajabhat Maha Sarakham University, 7(1), 71–86. Retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/245079