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Safi, B. ullah, Mukhlis Safi, F. R. and 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), pp. 536–540. doi: 10.70436/nuijb.v3i02.293.