Ravichandran Vengadasamy. (1996). Teacher feedback to student writing and student response to teacher feedback. Faculty of Language Studies, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ravichandran Vengadasamy. Teacher Feedback to Student Writing and Student Response to Teacher Feedback. Bangi: Faculty of Language Studies, Universiti Kebangsaan Malaysia, 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ravichandran Vengadasamy. Teacher Feedback to Student Writing and Student Response to Teacher Feedback. Faculty of Language Studies, Universiti Kebangsaan Malaysia, 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.