Negoita, Constantin Virgil
The Benjamin Cumming Pub., 1985
Buku Teks
Maus, Rex., editor
McGraw-Hill, 1991
Buku Referensi
Shafer, Glenn
Society for Industrial and Applied Mathematics, 1996
eBooks
Alty, J.L.
NCC Publications, 1984
Buku Teks
edited by, Frederick Hayes-Roth, Donald A. Waterman and Douglas Lenat
Addison-Wesley, 1983
Buku Teks