Varisco، D. M. (1991). The origin of the ANWA in arab tradition on the distinction between science and folklore. مجلة تاريخ العلوم العربية، مج9, ع1,2 ، 69 - 100. مسترجع من http://search.mandumah.com/Record/649421
Varisco، Daniel Martin. "The Origin of the ANWA in Arab Tradition On the Distinction between Science and Folklore." مجلة تاريخ العلوم العربية مج9, ع1,2 (1991): 69 - 100. مسترجع من http://search.mandumah.com/Record/649421