Ramiah Kalimuthu. (1987). Linguistic difficulties encountered by secondary four Tamil students in their Tamil compositions.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramiah Kalimuthu. Linguistic Difficulties Encountered by Secondary Four Tamil Students in Their Tamil Compositions. 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ramiah Kalimuthu. Linguistic Difficulties Encountered by Secondary Four Tamil Students in Their Tamil Compositions. 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.