สงวนวงศ์วาน ศิริทิพย์, and อุ่นรัตนะ กัลยา. 2022. “Effect of Providing Information via Video Media, Operating Room Tour Series on Anxiety Levels Prior to Administration of Anesthesia in Elective Surgical Patients at Pre-Anesthetic Evaluation Clinic, Sunpasitthiprasong Hospital, Ubon Ratchathani Province”. Journal of Health Science of Thailand 31 (1):80-88. https://thaidj.org/index.php/JHS/article/view/11744.