Gazaldun
Balai Pustaka, [Date of publication not identified]
Buku Teks SO
Budi Permana
Elex Media Komputindo, 1999
Buku Teks SO
Germain, Clarence B.
Prentice-Hall, 1967
Buku Teks SO
Bernard, Solomon Martin
Prentice-Hall, 1968
Buku Teks SO
Ari Satriyo Wibowo, 1964-
Pustaka Sinar Harapan , 2004
Buku Teks SO