Helgesen, M., & Brown, S. (1995). Active listening: Introducing skills for understanding : teacher's edition. Cambridge: Cambridge University Press.
Trích dẫn kiểu ChicagoHelgesen, Marc, và Steven Brown. Active Listening: Introducing Skills for Understanding : Teacher's Edition. Cambridge: Cambridge University Press, 1995.
MLA citiranjeHelgesen, Marc, và Steven Brown. Active Listening: Introducing Skills for Understanding : Teacher's Edition. Cambridge: Cambridge University Press, 1995.
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