Trần Xuân Diệp. (2009). Us culture thru speaking: Students' book. H.: University of Education.
Dyfyniad Arddull ChicagoTrần Xuân Diệp. Us Culture Thru Speaking: Students' Book. H.: University of Education, 2009.
Dyfyniad MLATrần Xuân Diệp. Us Culture Thru Speaking: Students' Book. H.: University of Education, 2009.
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