Idrees Ali, W., وثبة, Abdulelah Younis, S. and سارة 2019. Study of the Characterization of Partial Purified Polyamine Oxidase from Sheep’s Brain Tissue. Journal of Education and Science (JES). 28, 3 (Sep. 2019), 6–16. DOI:https://doi.org/10.33899/edusj.2019.162978.