Ngoc, Nguyen, Kim, Truong, Anh, Phan, Anh, Duong, Vi, Phung, AND Viet, Pham. " Polycyclic aromatic hydrocarbons (PAHs) in road dust collected from Quang Ninh: Contamination levels and potential sources" VNU Journal of Science: Natural Sciences and Technology [Online], Volume 37 Number 1 (30 March 2021)