Beck, Roger, author
Blackwell Publishing, 2007
Buku Teks
Shin, Hyong Sik, author
Ewha Womans University Press, 2005
Buku Teks
Hennessy, Maurice N., author
Frederick A. Praeger, 1961
Buku Teks
Hunter, Wilson William, author
Clarendon Press, 1903
Buku Teks
Harari, Yuval Noah, author
Harper, 2015
Buku Teks