Goh, H. K. P. (1994). The relationship between teaching materials and learning outcomes: Case study of a course taught to Chinese nationals working in Singapore.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Goh, Happy Khong Phong. The Relationship Between Teaching Materials and Learning Outcomes: Case Study of a Course Taught to Chinese Nationals Working in Singapore. 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Goh, Happy Khong Phong. The Relationship Between Teaching Materials and Learning Outcomes: Case Study of a Course Taught to Chinese Nationals Working in Singapore. 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.