Navaratana T, Srisuwan C, Sermboonsang R, Kwaengsopha A. 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. KKBSJournal [internet]. 2025 Dec. 31 [cited 2026 Sep. 21];9(3):1-20. available from: https://so04.tci-thaijo.org/index.php/kkbsjournal/article/view/278490