Raja Zarina binti Raja Othman. (1996). Error analysis of written English: An analysis of the written English of university students. University of Malaya.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Raja Zarina binti Raja Othman. Error Analysis of Written English: An Analysis of the Written English of University Students. Kuala Lumpur: University of Malaya, 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Raja Zarina binti Raja Othman. Error Analysis of Written English: An Analysis of the Written English of University Students. University of Malaya, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.