M. Ahmad, M., M. Y. Taha, and N. S. Shakir. “Applicability of Using the Earth Resistivity in Evaluating of Some Engineering Parameters for Road Subgrade/Naynawa Governorate”. Iraqi National Journal of Earth Science (INJES), vol. 18, no. 1, June 2018, pp. 135-48, doi:10.33899/earth.2018.159274.