Janpanya, Kanjana, Pimpaporn Klunklin, and Wanchai Lertwatthanawilat. “Effects of the Health Belief Promotion Program on COVID-19 Preventive Behavior among Medical Patients in a University Hospital”. Journal of The Royal Thai Army Nurses 26, no. 3 (December 4, 2025): 172–180. accessed August 30, 2026. https://he01.tci-thaijo.org/index.php/JRTAN/article/view/272358.