Drake, Ellen, author
Elsevier Saunder, 2012
Buku Teks
World Book, 1992
Buku Referensi
Ingo-Eric M.
London : k.C. Saur Munchen, 1981,
Buku Referensi
Macmillan, 1996
Buku Referensi
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