Tsischitzis, Dionysios C.
Data models
Prentice-Hall, 1982
Buku Teks SO
Ahuja, Narendra
Pattern models
North Holland, 1983
Buku Teks SO
Held David
Models of democracy
Buku Teks
Held, David
Models of democracy
Polity Press, 1997
Buku Teks
McQuaill, Denis
Communications models
Longman, 1984
Buku Teks