Fisher, Ronald C., author
Routledge, 2016
Buku Teks
Fisher, Ronald C., author
Scott, Foresman, 1988
Buku Teks
Cox, George, author
Thomson Learning, 2001
Buku Teks
Saffell, David C.
McGraw-Hill, 1997
Buku Teks
Lane, Frederick S.
Martin's Press Inc., 1980
Buku Teks