Institute of Service Excellence, S. (2009). Customer Satisfaction Index of Singapore: First Three Quarters Executive Summary 2009. Institutional Knowledge at Singapore Management University.
استشهاد بنمط شيكاغوInstitute of Service Excellence, SMU. Customer Satisfaction Index of Singapore: First Three Quarters Executive Summary 2009. Institutional Knowledge at Singapore Management University, 2009.
MLA استشهادInstitute of Service Excellence, SMU. Customer Satisfaction Index of Singapore: First Three Quarters Executive Summary 2009. Institutional Knowledge at Singapore Management University, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.