M. M. Muhammad Abd al-llah Musa Shubar. “A Research Extracted from a master’s Thesis Entitled Managing Change in Projects and Its Impact on Employee Productivity”. AL-Yarmouk Journal, vol. 18, no. 5 - الجزء الأول المجلد 18 السنة الرابعة, Apr. 2026, pp. 1109-46, https://journal.al-yarmok.edu.iq/index.php/alyj/article/view/1543.