Axelrod, Rise B.
St. Martin's Press, 1997
Buku Referensi
Axelrod, Rise B.
St. Martin Press, 1997
Buku Referensi
Budinski, Kenneth G.
ASM International, 2001
eBooks
Beer, David
John Wiley & Sons, 2005
Buku Teks
Charles E. Tutle Co.Inc, 1959,
Buku Referensi