Abraham, S. J. (1978). The influence of pre-school education on school attainment and adjustment: A study of children in selected primary schools in Kuala Lumpur, Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abraham, Sheela Joycelyn. The Influence of Pre-school Education on School Attainment and Adjustment: A Study of Children in Selected Primary Schools in Kuala Lumpur, Malaysia. 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abraham, Sheela Joycelyn. The Influence of Pre-school Education on School Attainment and Adjustment: A Study of Children in Selected Primary Schools in Kuala Lumpur, Malaysia. 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.