Prempree , Preecha. “Study of understanding communication under crisis conditions in Healthcare Managers (case study of COVID-19)”. Journal of Medical and Public Health Region 4 13, no. 1 (April 4, 2023): 129–138. accessed December 7, 2025. https://he01.tci-thaijo.org/index.php/JMPH4/article/view/262328.