Abdul Wahab, N. I. (2005). Implementing customer relationship management and service quality in supporting ICT services for CICT, UTM.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abdul Wahab, Nur Ilham. Implementing Customer Relationship Management and Service Quality in Supporting ICT Services for CICT, UTM. 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abdul Wahab, Nur Ilham. Implementing Customer Relationship Management and Service Quality in Supporting ICT Services for CICT, UTM. 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.