Himatjandra
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1992
UI - Tesis Membership
Negoita, Constantin Virgil
The Benjamin Cumming Pub., 1985
Buku Teks SO
Alty, J.L.
NCC Publications, 1984
Buku Teks SO
edited by, Frederick Hayes-Roth, Donald A. Waterman and Douglas Lenat
Addison-Wesley, 1983
Buku Teks SO
Waterman, Donald A.
Addison-Wesley, 1986
Buku Referensi