Yeoh, J. E. (1990). Self-concept as related to academic achievement and expectations: A comparison of PSLE high-achievers in secondary one.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Yeoh, Jeok Eng. Self-concept as Related to Academic Achievement and Expectations: A Comparison of PSLE High-achievers in Secondary One. 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Yeoh, Jeok Eng. Self-concept as Related to Academic Achievement and Expectations: A Comparison of PSLE High-achievers in Secondary One. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.