Hawkins, Barrie, author
Piatkus, 1993
Buku Teks
Priss, A.
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks
Kallestad, Walt
Michigan Zonder Van 1998,
Buku Teks
Adams, Charles K.
Tab Books, 1980
Buku Teks
Ciarcia, Steve
Bytes Books, 1981
Buku Teks