Boonnuch, C., Swangpanich, S., Jaichuen, S. ., Temchavala, K. ., & Chansukitmathee, S. . (2006). Internal Customer Satisfaction at Department of Nursing, Siriraj Hospital. Siriraj Medical Journal, 58(10), 1042–1045. Retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245936