สมยูรทรัพย์ ณ. “The Influencing Promotional Strategies towards the Decision to Study in Private University, International Programs”. Journal of Humanities and Social Sciences, Rajapruk University, vol. 2, no. 3, Jan. 2017, pp. 73-83, https://so03.tci-thaijo.org/index.php/rpu/article/view/112444.