Hasaneen M. Mahmood1 / Abdulkareem Hasan Odhafa 1 / Hashim H. Kareem2 2023. The effect of the interaction between organic and mineral colloids on the availability of some trace elements in some of Iraq’s southern marshes. (Humanities, social and applied sciences) Misan Journal of Academic Studies . 22, 45 (Mar. 2023), 1-11.