Al Maskeen، A. H.، و Nicol، J. (2011). A Study of Knowledge About the Role of Calcium and Vitamin D Among GCU Female Students and Assessment of their Intake of Food Rich in Calcium and Vitamin D (رسالة ماجستير غير منشورة). Glasgow Caledonian University، غلاسكو. مسترجع من http://search.mandumah.com/Record/609994
Al Maskeen، Amenah Hassan، و Joyce Nicol. "A Study of Knowledge About the Role of Calcium and Vitamin D Among GCU Female Students and Assessment of Their Intake of Food Rich in Calcium and Vitamin D" رسالة ماجستير. Glasgow Caledonian University، غلاسكو، 2011. مسترجع من http://search.mandumah.com/Record/609994