Zakari، N. M. A.، و Butler، F. R. (2005). Attitudes toward the Elderly and Knowledge of Aging as Correlates to The Willingness and Intention to Work with Elderly among Saudi Nursing Students (رسالة دكتوراه غير منشورة). George Mason University، فيرفاكس. مسترجع من http://search.mandumah.com/Record/618485
Zakari، Nazik M. A.، و Freida R. Butler. "Attitudes Toward the Elderly and Knowledge of Aging As Correlates to The Willingness and Intention to Work With Elderly Among Saudi Nursing Students" رسالة دكتوراه. George Mason University، فيرفاكس، 2005. مسترجع من http://search.mandumah.com/Record/618485