Hanson, Herbert C.
Affiliated East-West Press, 1968
Buku Teks
Galston, Arthur W., author
Prentice-Hall, 1968
Buku Teks
Smith, C. Michael, author
Springer, 2005
Buku Teks
Gates, Frank C.
McGraw-Hill , 1949
Buku Teks
Agrios, George N., author
Academic Press, 1988
Buku Teks