I. H. Sheikh, N. Naz, R. Haider, F. Hussain, M. F. Alam, M. Nadeem, & M. Arshad. (2024). Contribution to pollution by different types of vehicles based on age and number: Vehicular Pollution based on Age of vehicles. Pakistan Journal of Science, 76(03), 333–340. https://doi.org/10.57041/vol76iss03pp333-340