Prasanwon, Katakorn, Autchareeya Patoomwan, and Renu Pookboonmee. 2018. “Nurses’Knowledge, Attitude, and Nursing Practices for Pain Management for Postoperative Children”. Ramathibodi Nursing Journal 24 (1):37-50. https://he02.tci-thaijo.org/index.php/RNJ/article/view/104614.