Buppan, P., Sommatas, A., Nakprasom, P., Noicharoen, N., & Sangsuvan, D. (2019). Identification of Bacteria and Fungi Contamination of Some Classrooms at Srinakharinwirot University, Ongkharak Campus. Asian Journal of Applied Sciences, 7(5). https://doi.org/10.24203/ajas.v7i5.5983