Hussein Ali, Sabah, Ayman Ahmed, and Namik Daood. 2019. “Field Electrical Conductivity (EC) Mapping of a Selective Irrigated Units at Northern Al-Jazirah Irrigation Project, Iraq Using GIS and GPS Techniques”. Iraqi National Journal of Earth Science (INJES) 19 (1):46-56. https://doi.org/10.33899/earth.2019.170266.