https://uomosul.edu.iq/libcentral/%d8%b7%d8%a7%d9%84%d8%a8-%d8%af%d8%b1%d8%a7%d8%b3%d8%a7%d8%aa-%d8%b9%d9%84%d9%8a%d8%a7-%d9%8a%d9%87%d8%af%d9%8a-%d9%85%d8%a4%d9%84%d9%81%d9%87-%d8%a7%d9%84%d8%b4%d8%ae%d8%b5%d9%8a-%d9%84%d9%85%d9%83/