Udkunta, Kedsaraporn, Apiradee Nantsupawat, and Petsunee Thungjaroenkul. “The Study of Time Spent on Nursing Activities in Operating Room, Lampang Hospital”. Nursing Journal CMU 47, no. 4 (December 8, 2020): 279–290. Accessed April 28, 2024. https://he02.tci-thaijo.org/index.php/cmunursing/article/view/247955.