Maher Ishak, E. (1976). The phonetics and phonology of the Boḥairic dialect of Coptic and the survival of Coptic words in the colloquial and classical Arabic of Egypt and of Coptic grammatical constructions in colloquial Egyptian Arabic. University of Oxford.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Maher Ishak, Emile. The Phonetics and Phonology of the Boḥairic Dialect of Coptic and the Survival of Coptic Words in the Colloquial and Classical Arabic of Egypt and of Coptic Grammatical Constructions in Colloquial Egyptian Arabic. England: University of Oxford, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Maher Ishak, Emile. The Phonetics and Phonology of the Boḥairic Dialect of Coptic and the Survival of Coptic Words in the Colloquial and Classical Arabic of Egypt and of Coptic Grammatical Constructions in Colloquial Egyptian Arabic. University of Oxford, 1976.