Vũ Minh Ngọc. (2003). A survey on cooperative language learning at Dalat University: How to organize successful cooperative language learning. Đà Lạt: Trường Đại học Đà Lạt.
Dyfyniad Arddull ChicagoVũ Minh Ngọc. A Survey On Cooperative Language Learning At Dalat University: How to Organize Successful Cooperative Language Learning. Đà Lạt: Trường Đại học Đà Lạt, 2003.
Dyfyniad MLAVũ Minh Ngọc. A Survey On Cooperative Language Learning At Dalat University: How to Organize Successful Cooperative Language Learning. Đà Lạt: Trường Đại học Đà Lạt, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.