ชุมพลรักษ์ วรรณา. 2019. “Factors Relating to Saving Behavior of High School Students Participating in National Savings Fund’s Saving Promotion Program”. Journal of Humanities and Social Sciences, Rajapruk University 4 (3):215-22. https://so03.tci-thaijo.org/index.php/rpu/article/view/168296.