Safi, B. ullah, Mukhlis Safi, F. R., & Atif, A. R. (2024). The Role of Catalytic Vehicles in the Reduction of Environmental Pollution in Nangrahar City of Afghanistan. Nangarhar University International Journal of Biosciences, 3(02), 536–540. https://doi.org/10.70436/nuijb.v3i02.293