Aljanbi, A. J. A. .; Dibs, H.; Alyasery, B. H. Interpolation and Statistical Analysis for Evaluation of Global Earth Gravity Models Based on GPS and Orthometric Heights in the Middle of Iraq. Iraqi Journal of Science 2020, 61 (7), 1823-1830. https://doi.org/10.24996/ijs.2020.61.7.31.