Phan Xuân Sơn. (2000). An investigation into in, at, on and to and how they are used by Vietnamese high school learners.
استشهاد بنمط شيكاغوPhan Xuân Sơn. An Investigation Into In, At, On and to and How They Are Used By Vietnamese High School Learners. 2000.
MLA استشهادPhan Xuân Sơn. An Investigation Into In, At, On and to and How They Are Used By Vietnamese High School Learners. 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.