P. Kropotkin
Penguin Books, 1939
Buku Teks
tim peneliti/penulis, Salamun ... [and others] ; penyunting, Taryati
Departemen Pendidikan dan Kebudayaan, 1993
Buku Teks
Kropotkin, Petr
Extending Horizons Books , 1955
Buku Teks
Akhmad Al Afghani, author
Program Pascasarjana Universitas Indonesia, 2006
UI - Tesis (Membership)
Sheth, Jagdish N., author
John Wiley & Sons, 1988
Buku Teks