edited by Anthony G. McGrew
Manchester University Press, 1985
Buku Teks
Radford, K.J., author
Prushin-Hall, 1974
Buku Teks
Ibnu Syamsi, author
Bina Aksara, 1989
Buku Teks
Young, S. David, author
McGraw-Hill, 2000
Buku Teks
DeCoster, Don T., author
Melville Publishing Company, 1974
Buku Teks