Jasim, F., Falah Hasan Ali and Mohammed Adam Mohammed 2023. Treatment of Over Size Ratios Of Subbase Materials Used In Erbil Governorate Pavements, Kurdistan ,Iraq. Polytechnic Journal. 12, 2 (Apr. 2023), 28-34. DOI:https://doi.org/10.25156/ptj.v12n2y2022.pp28-34.