edited by David Dyzenhaus and Thomas Poole
Cambridge University Press, 2012
Buku Teks
550, 1947
Buku Teks
Coleman, Frank M
University Toronto Press, 1977
Buku Teks
Latumahina, Freddy, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2004
UI - Skripsi (Membership)
Robert Maynard Hutchins, editor in chief
Encyclopaedia Britannica, Inc., 1952
Buku Referensi