Hossain, Irin, Md. Shafiur Rahman, Shahria Sattar, Mushfiqul Haque, Ashekur Rahman Mullick, Sanjida Siraj, Nadia Sultana, et al. “Environmental Overview of Air Quality Index (AQI) in Bangladesh: Characteristics and Challenges in Present Era”. International Journal of Research in Engineering, Science and Management 4, no. 7 (July 13, 2021): 110–115. Accessed May 5, 2024. https://journal.ijresm.com/index.php/ijresm/article/view/986.