Aldeeb, Ghada Abdelsalam, and Safaa Mohammed El-Demerdash. 2016. “Head nurses’ Transformational Leadership, Collaboration and Its Relation to Staff nurses’Work Engagement”. International Journal of Nursing Didactics 6 (7):30-39. https://doi.org/10.15520/ijnd.2016.vol6.iss7.163.30-39.