Chen, Y. (2001). The use of grammatical metaphor by EFL learners and their language proficiency: Exploring the language maturity of Chinese university students.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chen, Youping. The Use of Grammatical Metaphor by EFL Learners and Their Language Proficiency: Exploring the Language Maturity of Chinese University Students. 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chen, Youping. The Use of Grammatical Metaphor by EFL Learners and Their Language Proficiency: Exploring the Language Maturity of Chinese University Students. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.