Epstein, Samuel David, author
Cambridge University Press , 2006
Buku Teks
Bloomfield, Leonard, author
Gramedia Pustaka Utama, 1995
Buku Teks
Hall, Robert A.
Anchor Books, 1960
Buku Teks
Milner, Jean Claude
St. Martin’s Press, 1990
Buku Teks
SEAMEO, 1981
Buku Teks