Mawlood, Kurdistan, and Paree Khan Omer. 2019. “Prediction the Groundwater Depth Using Kriging Method and Bayesian Kalman Filter Approach in Erbil Governorate”. Cihan University-Erbil Scientific Journal 3 (1), 42-49. https://doi.org/10.24086/cuesj.v3n1y2019.pp42-49.