Tan, Y. Y. (2011). Consumer confidence index influence on attitude towards sales promotion: Comparison between Malaysia and Singapore.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tan, Yin Yin. Consumer Confidence Index Influence on Attitude Towards Sales Promotion: Comparison Between Malaysia and Singapore. 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tan, Yin Yin. Consumer Confidence Index Influence on Attitude Towards Sales Promotion: Comparison Between Malaysia and Singapore. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.