Riso, Ovio
Van Nostrand Reinhold, 1973
Buku Teks
Nganele, David
John Wiley & Sons, 2003
Buku Teks
J.M. Juran, editor-in-chief; Frank M. Gryna, associate editor
McGraw-Hill, 1988
Buku Referensi
Parr, E.A.
Butterworth-Heinemann, 1995
Buku Referensi
editor-in-chief, Bela G. Liptak
Chilton Book, 1995
Buku Referensi