มโนรัตน์ น., and สินธุนันท์สกุล น. “Indoor Air Quality and Microbial Indoor Air Quality in Tertiary Care Hospital”. Journal of Preventive Medicine Association of Thailand, vol. 9, no. 2, Sept. 2019, pp. 232-41, https://he01.tci-thaijo.org/index.php/JPMAT/article/view/217783.