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Mukhlis, Sifatullah, Saifullah Shinwari, Khudaidad Kuchai, Din Mohammad Sharafmal, Waliimam Ulfat, and Fazalkarim Elmi. “The Role of Catalytic Converter in Vehicles”. Nangarhar University International Journal of Biosciences 3, no. 02 (February 10, 2024): 532–535. Accessed August 21, 2026. http://nuijb.nu.edu.af/index.php/nuijb/article/view/292.