Sheldon, Sidney
Gramedia Pustaka Utama, 1993
Buku Teks
Gribachov, Nikolai
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks
Bear, Gerg
Legend, 1992
Buku Teks
Muller, Wolfgang D.
New York: Criterion Books, 1957
Buku Teks
Barrett, Andrea
Dell Publishing, 1988
Buku Teks