Leong, S. C. (1990). The learning approaches and achievement of secondary four gifted pupils in Singapore: By Leong See Cheng.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Leong, See Cheng. The Learning Approaches and Achievement of Secondary Four Gifted Pupils in Singapore: By Leong See Cheng. 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Leong, See Cheng. The Learning Approaches and Achievement of Secondary Four Gifted Pupils in Singapore: By Leong See Cheng. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.