https://uomosul.edu.iq/libcentral/%d8%aa%d8%b5%d9%86%d9%8a%d9%81-%d8%af%d9%8a%d9%88%d9%8a-%d8%a7%d9%84%d8%b9%d8%b4%d8%b1%d9%8a-%d8%b9%d9%86%d9%88%d8%a7%d9%86%d8%a7-%d9%84%d9%84%d8%af%d9%88%d8%b1%d8%a9-%d8%a7%d9%84%d8%a5%d9%81%d8%aa/