Navaratana, T., Srisuwan, C., Sermboonsang , R., & Kwaengsopha, A. (2025). The Influence of Perceived Differentiation of Used Car Dealers in San Pa Tong District, Chiang Mai Province: A Comparative Analysis across Occupation, Salary, and Car Price. KKBS Journal of Business Administration and Accountancy, 9(3), 1–20. retrieved from https://so04.tci-thaijo.org/index.php/kkbsjournal/article/view/278490