Dirksen, C. (1997). Educator's English: Speaking and listening for Vietnamese teachers. [s.n.]: English Language Institute.
Trích dẫn kiểu ChicagoDirksen, Carolyn. Educator's English: Speaking and Listening for Vietnamese Teachers. [s.n.]: English Language Institute, 1997.
Deismireacht MLADirksen, Carolyn. Educator's English: Speaking and Listening for Vietnamese Teachers. [s.n.]: English Language Institute, 1997.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.