Gunzler, Helmut, author
Wiley-VCH Verlag, 2002
Buku Teks
edited by Joseph Sneddon
Elsevier, 1990
Buku Teks
Yip-Wah, Chung, author
Academic Press, 2001
Buku Teks
Sitorus, Petherson Brilliant Maju, author
Fakultas Ilmu Komputer Universitas Indonesia, 1994
UI - Skripsi (Membership)
Moore, G.L., author
Elsevier, 1989
Buku Teks