محمد سرحان الزویني ف. Development Of The Mathematical Model For Predicating The Construction Productivity In IRAQ Using The Artificial Neural Perceptron Network. J. eng. sustain. dev. [Internet]. 2014 Mar. 1 [cited 2026 Jul. 16];18(2):ِAr-1-Ar-21. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/860