Ha, Vo Thi Le, Nguyen Thi Thu Hien, Nghiem Trung Dung, Nguyen Lan Anh, Thai Ha Vinh, and Minoru Yoneda. 2020. “PM2.5-Bound PAHs in the Indoor and Outdoor Air of Nursery Schools in Ha Noi, Viet Nam and Health Implication”. <i>Vietnam Journal of Science and Technology</i> 58 (3). Hanoi, VN:319-27. https://doi.org/10.15625/2525-2518/58/3/14224.