Al-jalabi, Ayad. “Population and Environment- Study of the Relation Between Population and CO2 Emission”. TANMIYAT AL-RAFIDAIN 28, no. 81 (March 1, 2006): 126–150. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/tanmiyat/article/view/30303.