Borner, Katy
Atlas of knowledge : anyone can map
London : MIT press, 2015
 Buku Referensi
Brachman, Ronald J.
Knowledge representation and reasoning
Elsevier, 2004
 Buku Teks SO
Readings in knowledge representation
edited by Ronald J. Brachman; Hector J. Levesque
Morgan Kaufmann Publishers, 1985
 Buku Teks SO
Knowledge representation for decision systems
edited by Leif B. Methlie and Ralph H. Sprague
North Holland, 1985
 Buku Teks SO
Knowledge representation for decision systems
edited by Leif B. Methlie and Ralph H. Sprague
North Holland, 1985
 Buku Teks SO