AbdulMawjoud, Ayman A. “HEADWAY MODELING IN NORTHERN IRAQI TWO-LANE HIGHWAYS”. Academic Journal of Nawroz University 7, no. 4 (December 8, 2018): 1–8. Accessed April 27, 2024. https://journals.nawroz.edu.krd/index.php/ajnu/article/view/265.