Wahyudi Kumorotomo, author
Gadjah Mada Univesity Press, 2004
Buku Teks
Murdick, Robert G., author
Erlangga, 1997
Buku Teks
Murdick, Robert G., author
Erlangga , 1993
Buku Teks
Murdick, Robert G., author
Erlangga , 1995
Buku Teks
McLeod, Raymond, author
Indeks, 2001
Buku Teks