Carter, Jimmy, author
Simon & Schuster, 2003
Buku Teks
Freeborn, Richard, author
Cambridge University Press, 1985
Buku Teks
edited by David Ewen
Random House, 1966
Buku Teks
Ismail Marahimin, author
Louisiana State University Press, 1986
Buku Teks
Firsta Primordiyanti, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Tesis Open