A. Hasan H. Effect of Fly Ash on Geotechnical Properties of Expansive soil. J. eng. sustain. dev. [Internet]. 2012 Jun. 1 [cited 2026 Jun. 4];16(2):306-1. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1217