Wong, C. J. (2006). Consumer values, attitudes and behaviours and their relationships with willingness to spend more for environment friendly products.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wong, Chuu Jiun. Consumer Values, Attitudes and Behaviours and Their Relationships with Willingness to Spend More for Environment Friendly Products. 2006.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wong, Chuu Jiun. Consumer Values, Attitudes and Behaviours and Their Relationships with Willingness to Spend More for Environment Friendly Products. 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.