Amstrong, John A.
Colombia University Press, 1963
Buku Teks
Pergamon Press, 1978
Buku Teks
Situmorang, Sitor, 1923-2014, author
Komunitas Bambu, 2004
Buku Teks
Prentice-Hall, 1990
Buku Teks
Juli Soemirat Slamet, author
Gadjah Mada Unversitas Pres, 1995
Buku Teks