Beyer, Hans, author
Prentice-Hall, 1996
Buku Referensi
Sharp, J.T., author
Chapman and Hall, 1989
Buku Teks
McMurry, John, author
Cole Publ.Com, 1992
Buku Teks
Carey, Francis A., 1937-, author
McGraw-HIll, 2003
Buku Teks
Beyer, Hans, author
[Publisher not identified], [Date of publication not identified]
Buku Teks