Zen Alabdeen, Ammar. “The New Trends of Scientific Management in Libraries and Information Centers: Management by Objectives As Sample”. Adab Al-Rafidayn 38, no. 52 (December 1, 2008): 411–440. Accessed September 27, 2025. https://jwups.uomosul.edu.iq/index.php/radab/article/view/32102.