Alcosser, Edward, author
Hayden Book Company, 1967
Buku Teks
Weiss, Donald H., author
[American Management Association;, ], 1991
eBooks
Lieberman, Norman P., author
McGraw-Hill, 1997
Buku Referensi
Byers, TJ.
McGraw-Hill, 1987
Buku Teks
Nowicki, J.R.
The Chemical Rubber, 1971
Buku Teks