Diep Yen Nga, Dang, Vuong Hong Nhung, and To Thi Hien. 2020. “Microbial Contamination In The Outdoor Air At Some Garbage Collecting Places And Waste Transfering Stations”. VNUHCM Journal of Advanced Research in Natural Sciences 4 (SI), SI11-SI21. https://doi.org/https://doi.org/10.32508/stdjns.v4i1.986.