YOUSEF, MOHANAD MOHSEN, and MOHAMMED ANWER JASIM. “GNSS OBSERVATIONS TO FIND THE RELATIONSHIP BETWEEN THE GLOBAL DATUM WORLD GEODETIC SYSTEM WGS84 AND THE LOCAL DATUM KARBALA 1979. A CASE STUDY OF ERBIL-DUHOK TERRITORY ”. Journal of Duhok University 22, no. 2 (June 2, 2020): 102-108. Accessed May 6, 2024. https://journal.uod.ac/index.php/uodjournal/article/view/587.