Hassoon, H.A. “MEASUREMENT OF CARBON MONOXIDE EMISSIONS FROM VEHICLES EXHAUST PIPE USING PORTABLE GAS DETECTOR”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 50, no. 3 (June 30, 2019). Accessed November 21, 2024. https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/710.