Chiam, H. K. (1976). A study of the self concept of form four students in an urban area and some of its correlates.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chiam, Heng Keng. A Study of the Self Concept of Form Four Students in an Urban Area and Some of Its Correlates. 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chiam, Heng Keng. A Study of the Self Concept of Form Four Students in an Urban Area and Some of Its Correlates. 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.