Sukkrajang, C., kantamon sukkrajang, and T. Rattanakool. “A Stepwise Multiple Regression Analysis of Factors Influencing the Decision to Choose Freight Companies’ Services”. Academic Journal of Industrial Technology Innovation, vol. 2, no. 2, Aug. 2024, pp. 24-31, https://ph03.tci-thaijo.org/index.php/AJITI/article/view/3141.