Gaya APA
Brown, Steven. (2007).
Active Listening self-study level 2 (2 Ed.).
Hongkong:
Cambrige University Press.
Gaya Chicago
Brown, Steven.
Active Listening self-study level 2.
2 Ed.
Hongkong:
Cambrige University Press,
2007.
CD-ROM.
Gaya MLA
Brown, Steven.
Active Listening self-study level 2.
2 Ed.
Hongkong:
Cambrige University Press,
2007.
CD-ROM.
Gaya Turabian
Brown, Steven.
Active Listening self-study level 2.
2 Ed.
Hongkong:
Cambrige University Press,
2007.
CD-ROM.