Kammouna ZMI. Adding Polymer to Mortar Mixture According to the Procedure Recommended by ASTM C 1439. NUCEJ [Internet]. 2011 Mar. 24 [cited 2025 Apr. 16];14(1):13-8. Available from: https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/597