McCall, John
Monarch Press, 1966
Buku Teks
Netzley, Michael, author
Prentice-Hall, 2001
Buku Teks
Budinski, Kenneth G., author
ASM International, 2001
eBooks
Beer, David, author
John Wiley & Sons, 2005
Buku Teks
Charles E. Tutle Co.Inc, 1959,
Buku Referensi