Meesang, Winai, Erawan Baothong, ยาบุษดี Piyavadi, Wipaporn Kitisriworaphan, Sivaporn Phukongthong, Poosanapas Somnil, and Subchart intrachain. “Monitoring and Assessing the Amount of Particulate Matter Less Than 2.5 Microns (PM2.5) in the Indoor and Outdoor Areas: A Case Study of Udon Thani Rajabhat University (Sam Phrao Education Center)”. Journal of Advanced Development in Engineering and Science 12, no. 35 (August 29, 2023): 50–69. Accessed March 1, 2024.