Allen, James
Natural language understanding
The Benjamin Cumming Pub. Co., 1987
 Buku Teks SO
LYaPAS: a programming language for logic and coding algorithms
Academic Press , 1969
 Buku Teks SO
Gregory, Steve
Parallel logic programming in PARLOG: the language and its implementation
Addison-Wesley, 1987
 Buku Teks SO
Mottola, Robert
Assembly language programming for the Apple II
Osborne/McGraw-Hill, 1982
 Buku Teks SO
Ovchinnikova, Ekaterina
Integration of world knowledge for natural language understanding
Atlantis Press, 2012
 eBooks