C. . Krimjai, N. . Kunarbutr, C. . Kaipho, K. Tantrakarnapa, and S. . Chomming, “The role of the engineering in fighting COVID-19: A lesson from hospitals”, The office of disease prevention and control 9th Nakhon Ratchasima Journal, vol. 27, no. 2, pp. 61–70, May 2021.