Pomerance, Murray
Polity Press, 2013
Buku Teks
Irca Adelonika
2017
UI - Skripsi (Membership)
Woodbury, Richard B.
Columbia University Press, 1973
Buku Teks
Whitehead, Alfred North, 1861-1947
Mentor Books , 1954
Buku Teks
Guizet, G
London Hachette 1895
Buku Teks