Rizwan Haider, Dr. Imran Hamid Sheikh, Dr Nusrat Naz, Muhammad Farooq Alam, Muhammad Nadeem, Muhammad Ahmad Akram and Riaz Ahmad 2025. Evaluation of Air-Fuel Ratio and Vehicular Emissions of different EFI Petrol Vehicles in Lahore, Pakistan. Pakistan Journal of Science. 77, 02 (Jun. 2025), 211–215. DOI:https://doi.org/10.57041/vol77iss02pp211-215.