Cameron, Susan, 1958-
Perfecting your english pronunciation
McGraw-Hill, 2011
 Multimedia
Cameron, Susan, 1958-
Perfecting your english pronunciation
McGraw-Hill, 2012
 Buku Teks
Jones, Daniel
The pronunciation of english
University Press, 1958
 Buku Teks
Nilsen, Don L. F.
Pronunciation contrasts in English
Regents Publishing, 1973
 Buku Teks
Cox, Felicity
Australian English pronunciation and transcription
Cambridge University Press, 2011
 Buku Teks