Magee, John F., author
McGraw-Hill, 1967
Buku Teks
Carrol, Phil, author
New York, N.Y., McGraw-Hill
Buku Teks
Magee, John F., author
McGraw-Hill Book Company, Inc., 1958
Buku Teks
Amir Syafrudin, author
Fakultas Ilmu Komputer Universitas Indonesia, 2004
UI - Skripsi (Membership)
Connors, Michael M., author
Pennsylvania International Textbook, 1967
Buku Teks