Andranovich, Gregory D., author
Sage, 1993
Buku Teks
Page, Stephen J.
Royutledge, 1995
Buku Teks
Palen, J. John, author
McGraw-Hill, 1987
Buku Teks
Gleeson, Brendan, 1964- author
Routledge, 2014
Buku Teks
Baring-Gould, Sabine, author
Longman, 1906
Buku Teks