Thammachart, R. ., and S. . Tuvadaratragool. “Marketing Mix Affecting Parents’ Decision Making on Choosing Private Schools in Prachuap Khiri Khan Province”. Suan Dusit Graduate School Academic Journal, vol. 19, no. 3, Oct. 2023, pp. 109-24, https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/82.