Qaro, Shams-Aldeen M., and Zeki M. Akrawee. “Economic Evaluation Air Pollution Removal and Oxygen Production Based on I-Tree Program for Atrush Forest/Kurdistan Region Of Iraq*”. Academic Journal of Nawroz University 9, no. 1 (February 18, 2020): 87–96. Accessed April 25, 2024. https://journals.nawroz.edu.krd/index.php/ajnu/article/view/548.