Virgiyanti, W. (2007). Investigating customer relationship management and service quality in higher education in Malaysia case study: School of Graduate Studies, Universiti Teknologi Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Virgiyanti, Wiwied. Investigating Customer Relationship Management and Service Quality in Higher Education in Malaysia Case Study: School of Graduate Studies, Universiti Teknologi Malaysia. 2007.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Virgiyanti, Wiwied. Investigating Customer Relationship Management and Service Quality in Higher Education in Malaysia Case Study: School of Graduate Studies, Universiti Teknologi Malaysia. 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.