Hejazi, M. J. (2010). The problems of perception and production of English sounds by Persian learners: A contrastive and error analysis / Mohammad Javad Hejazi.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hejazi, Mohammad Javad. The Problems of Perception and Production of English Sounds by Persian Learners: A Contrastive and Error Analysis / Mohammad Javad Hejazi. 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Hejazi, Mohammad Javad. The Problems of Perception and Production of English Sounds by Persian Learners: A Contrastive and Error Analysis / Mohammad Javad Hejazi. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.