Payne, Elaine
Prentice-Hall, 2000
Buku Teks
Dewi Nursita, author
Universitas Indonesia, 2001
UI - Skripsi (Membership)
Cohn, John M., author
Facet Publishing, 2002
Buku Teks
Cohn, John M., author
Neal-Schuman, 2001
Buku Teks
Kieffer, George David, author
Serambi Ilmu Semesta, 2011
Buku Teks