Holum, John R., author
John Wiley & Sons, 1982
Buku Teks
Holum, John R., author
John Wiley & Sons, 1994
Buku Teks
Holum, John R., author
John Wiley & Sons, 1995
Buku Teks
Kneen, W.R., author
The English Language Book Society, 1974
Buku Teks
Masterton, William L., author
Saunders Golden, 1997
Buku Teks