Beyer, Hans, author
Prentice-Hall, 1996
Buku Referensi
Sharp, J.T., author
Chapman and Hall, 1989
Buku Teks
Beyer, Hans, author
[Publisher not identified], [Date of publication not identified]
Buku Teks
Solomons, T. W. Graham, author
John Wiley & Sons, 1992
Buku Teks
by Stanley H. Pine ... [and others]
McGraw-Hill, 1984
Buku Teks