Maneechay, M., Saisum, B. and Maneechay, S. (2026) “Knowledge and leadership of the sub-districts health promoting hospital director in preventing the spread of Coronavirus 2019 based on COVID-Free setting, Lopburi Province”, Journal of Medical and Public Health Region 4. Saraburi,Thailand, 16(2). available at: https://he01.tci-thaijo.org/index.php/JMPH4/article/view/272106 (accessed: 1 September 2026).