Yu, V. G. M. (1997). A comparative study of second language student participation in teacher-led, unstructured group, and structured group activities.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Yu, Vicky Guang Magee. A Comparative Study of Second Language Student Participation in Teacher-led, Unstructured Group, and Structured Group Activities. 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Yu, Vicky Guang Magee. A Comparative Study of Second Language Student Participation in Teacher-led, Unstructured Group, and Structured Group Activities. 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.