Siriwat , Soraya, Kulwadee Abhicharttibutra, and Treeyaphan Supamanee. “Development of a Competency Framework Among Gastrointestinal Endoscopy Nurses, Ramkhamhaeng Hospital Group, Chiang Mai Province”. Nursing Journal CMU 47, no. 2 (May 14, 2020): 333–344. Accessed May 5, 2024. https://he02.tci-thaijo.org/index.php/cmunursing/article/view/241824.