Bakalla، M. H. (1980). Nasals and Nasalization as Treated by Early Arab and Muslim Phoneticians. مجلة كلية الآداب، مج7 ، 1 - 8. مسترجع من http://search.mandumah.com/Record/657737
Bakalla، Muhammad Hasan. "Nasals and Nasalization As Treated By Early Arab and Muslim Phoneticians." مجلة كلية الآداب مج7 (1980): 1 - 8. مسترجع من http://search.mandumah.com/Record/657737