Limpiteeprakan, Pawena, Thidaporn Srithai, Parichat Jansen, Soitong Panpo, and Wipada Dechapany. “Formaldehyde Treatment With Ozone in Anatomy Classroom”. Journal of Energy and Environment Technology of Graduate School Siam Technology College 8, no. 2 (December 27, 2021): 12–22. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/JEET/article/view/244458.