Longman dictionary of the English language
Longman, 1984
 Buku Referensi
New webster's dictionary of the english language
 Buku Teks
Longman dictionary of English language and culture
Longman, 1992
 Buku Referensi
Skeat, Walter W.
A concise etymological dictionary of the English language
The Clarendon Press, 1948
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Collins COBUILD English language dictionary
editor in chief John Sinclair
Collins, 1991
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