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