The oxford dictionary of current english
Oxford university press , 1992
 Buku Teks
The Oxford English-Russian dictionary
edited by P. S. Falla
Clarendon Press, 1990
 Buku Referensi
Smith, William George, compiler
The Oxford Dictionary of English proverbs
Clarendon Press, 1952
 Buku Referensi
The oxford dictionary of current english
edited by Della Thompson
Oxford University Press, 1996
 Buku Referensi
CHalker, Sylvia
The Oxford dictionary of English grammar
Clarendon Press, 1994
 Buku Referensi