Rizwan Haider, Dr. Imran Hamid Sheikh, Dr Nusrat Naz, Muhammad Farooq Alam, Muhammad Nadeem, Muhammad Ahmad Akram, Riaz Ahmad. Evaluation of Air-Fuel Ratio and Vehicular Emissions of different EFI Petrol Vehicles in Lahore, Pakistan. PJS [Internet]. 2025 Jun. 15 [cited 2026 Mar. 25];77(02):211-5. Available from: https://pjosr.com/index.php/pjs/article/view/1446