Gibaldi, Joseph, author
The Modern Language Association, 2003
Buku Teks
Hansen, Karen Lee, author
John Wiley & Sons, 2011
Buku Referensi
Poe, Roy W., author
McGraw-Hill, 1988
Buku Teks
Agus Riyanto
Citra Grafika Pratama, 2005
Buku Teks
Sally B. Olds, Marcia L. London, Patricia A. Wieland Ladewig, Michele R. Davidson
Pearson Education, 2004
Buku Referensi