นภาธร จตุรงค์. “The Roles of Human Resource Management in Lean Management: A Case Study of Thammasat University Hospital”. Journal of HR intelligence 13, no. 2 (December 28, 2018): 96–122. Accessed May 22, 2024. https://so03.tci-thaijo.org/index.php/hri/article/view/213000.