Balakrishnan Vellasamy. (1994). Teacher trainees' knowledge of and attitude towards Acquired Immuno-Deficiency Syndrome (AIDS).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Balakrishnan Vellasamy. Teacher Trainees' Knowledge of and Attitude Towards Acquired Immuno-Deficiency Syndrome (AIDS). 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Balakrishnan Vellasamy. Teacher Trainees' Knowledge of and Attitude Towards Acquired Immuno-Deficiency Syndrome (AIDS). 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.