Ruanggoon, J., P. . Pornpayuhakeit, and P. . Opasvitayarux. “Application of lean concepts to improve consumable disbursement process to reduce waiting time in a public hospital in Bangkok”. RMUTSB ACADEMIC JOURNAL (HUMANITIES AND SOCIAL SCIENCES), vol. 8, no. 2, Dec. 2023, pp. 192-05, https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/264002.