Tubagus Erdhi W.
1997
UI - Skripsi Membership
Mercadal, Dennis
Van Nostrand Reinhold, 1990
Buku Referensi
Fakultas Teknik Universitas Indonesia, 1995
UI - Skripsi Membership
Fakultas Ilmu Komputer Universitas Indonesia, 1996
UI - Skripsi Membership
edited by William J. Clancey, Edward H. Shortliffe
Addison-Wesley, 1984
Buku Teks SO