Boey, C. C. M. (2003). Correlation among academic achievement, recurrent abdominal pain and other factors in year six primary school children in Petaling Jaya, Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Boey, Christopher Chiong Meng. Correlation Among Academic Achievement, Recurrent Abdominal Pain and Other Factors in Year Six Primary School Children in Petaling Jaya, Malaysia. 2003.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Boey, Christopher Chiong Meng. Correlation Among Academic Achievement, Recurrent Abdominal Pain and Other Factors in Year Six Primary School Children in Petaling Jaya, Malaysia. 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.