Yousif Fattah, M. ., Ali Omran, H. ., & Mohammed Abdulatif, T. . (2014). Modification of Pinhole Apparatus for Identification and Classification of Dispersive Clay Soils. Journal of Engineering and Sustainable Development, 18(6), 181-201. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/929