Bolander, Donald O., author
Lexicon Publication, 1993
Buku Referensi
Merriam-Webster, 2000
Buku Referensi
Delair , 1981
Buku Teks
compiled by the editors of Webster's New World Dictionaries ; Michael Agnes, editor in chief ; with principal thesaurus text by Charlton Laird
Houghton Mifflin Harcourt, 2013
Buku Referensi
Macmillan, 1996
Buku Referensi