Muhammad H.M.H.IbrahimMuhammad H.M.H., Standard and Prestige Language: A Problem in Arabic Sociolinguistics, „Anthropological Linguistics”, 28 (1), 1986, s. 115–126, ISSN0003-5483, OCLC9972053376, JSTOR: 30027950(ang.).
Muhammad H.M.H.IbrahimMuhammad H.M.H., Standard and Prestige Language: A Problem in Arabic Sociolinguistics, „Anthropological Linguistics”, 28 (1), 1986, s. 115–126, ISSN0003-5483, OCLC9972053376, JSTOR: 30027950(ang.).