Pertiwi Ambarningrum,
Basic idioms in American conversation : memahami penggunaan idiom Amerika dalam percakapan sehari-hari /Pertiwi Ambarningrum
Lingkaran Pustaka , 1997
 Buku Teks SO
Webster's new world dictionary of American English
Victoria Neufeldt, David B. Guralnik, editor
Webster's New World, 1988
 Buku Referensi
Thesaurus of American slang
edited by Robert L. Chapman
Collins, 1989
 Buku Referensi
The holt basic dictionary of American English
editor, Alvina Treut Burrows
Holt, Rinehart and Winston, 1966
 Buku Referensi
The holt intermediate dictionary of American English
Holt, Rinehard and Winston, Inc.
Holt, Rinehart and Winston,Inc, 1966
 Buku Teks SO