Increasing Population in the Kurdish Areas in the Abbasid Era ( 132 -656 A.H / 749 -1258 A.D) (It is the Research on the Analytical History of the Reasons of the Increasing Population ). (2022). Journal of University of Raparin, 9(3), 554-581. https://doi.org/10.26750/Vol(9).No(3).Paper24