ปัทมะอุบล น, ตรีเมธสุนทร จ, โรจน์นิรุตติกุล ณ. Marketing Mix for Buying Decision of Car Engine oil of Car Driver in Bangkok Metropolitan. J. IND. EDUC. [Internet]. 2015 Aug. 31 [cited 2024 Apr. 29];14(2):673-9. Available from: https://ph01.tci-thaijo.org/index.php/JIE/article/view/122604