Cost technique based on ABCII specifications and its effect in the Implementation of contracting contracts: Applied research in Al-Mansour general company for construction contracting. JAFS [Internet]. 2019 Dec. 1 [cited 2025 Jun. 25];14(خاص). Available from: https://jpgiafs.uobaghdad.edu.iq/index.php/JAFS/article/view/797