อาษากิจ เ., and อุดมวิศวกุล น. “DEVELOPMENT OF SERVICE EFFECTIVENESS FOR GRADUATE STUDENTS RAJABHAT UNIVERSITY IN BANGKOK”. Academic Journal Phranakhon Rajabhat University, vol. 9, no. 2, Oct. 2018, pp. 286-97, https://so01.tci-thaijo.org/index.php/AJPU/article/view/134114.