Wulpi, Donald J.
ASM International, 1999
eBooks
Levy, Matthys
W.W. Norton & Co., 1992
Buku Teks
Carpendale, Jeremy
Blackwell Publishing, 2006
Buku Teks
Piven, Frances Fox
Pantheon Books, 1977
Buku Teks
Levy, Matthys
W.W. Norton & Company,, 2002
Buku Teks