Chatchawarnpan, Tanyarat, Wimolnun Pudtivarnichapong, Nopporn Vongsirimas, and Phuangphet Kaesornsamut. 2024. “Effect of a Program for Reducing Pre-Operative Anxiety in Patients Undergoing Total Knee Replacement Surgery Based upon Peplau’s Interpersonal Relations Theory”. Nursing Science Journal of Thailand 42 (4):41-52. https://he02.tci-thaijo.org/index.php/ns/article/view/271135.