The nuttall dictionary of English synonyms and antonyms
edited by G. Elgie Christ
Frederick Warne and Co, 1960
Buku Referensi
Longman dictionary of the English language
Longman, 1984
Buku Referensi
The universal dictionary of the English language
edited by Henry Cecil
George Routledge & Sons, 1946
Buku Referensi
Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
Buku Teks
New webster's dictionary of the english language
Delair , 1981
Buku Teks