Jalal, Nawzad K., Dawa A. A. Masih, and Sulaiman A. Mustafa. “Acoustical Evaluation and Comparison Between Two Classroom Types in Erbil”. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING 9, no. 1 (January 19, 2023): 223–236. Accessed June 18, 2026. https://eajse.tiu.edu.iq/index.php/eajse/article/view/89.