M. Gravides, Marilou, et al. “Perception of Staff Nurses on the Participation of Student Nurses of Tobruk University at Tobruk Medical Center”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 37, no. 2, Feb. 2018, pp. 253-60, https://gssrr.org/JournalOfBasicAndApplied/article/view/8691.