Beason, Larry
A Commonsense guide to grammar and usage
Bredfors/ St. Martins, 2003
 Buku Teks
Maftuchah Jusuf
Studying English grammar thrpugh ecercise
N.V. Harapan Masa, 1962
 Buku Teks SO
Parrot, Martin
Grammar for English language teachers
Cambridge University Press, 2003
 Buku Teks
Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
 Buku Teks SO
Asian journal of English languange teaching
The Chinese University Press, 2001
 Majalah, Jurnal, Buletin