Richardson, Donald V.
Prentice-Hall, 1997
Buku Teks
Richardson, Donald V.
Prentice-Hall, 1997
Buku Teks
Kosow, Irving L.
Prentice-Hall, 991
Buku Teks
Anderson, Leonard R.,
Reston Publishing, 1981
Buku Teks
Gingrich, Harold W.
Prentice-Hall, 1979
Buku Teks