Mills, Gordon H.
Holt, Rinehart and Winston, 1954
Buku Teks SO
Budinski, Kenneth G.
ASM International, 2001
eBooks
general editor, Philip Rubens
Henry Holt and Company, 1992
Buku Referensi
Miles, James
Science Research Associaties, Inc., 1982
Buku Teks SO
Weisman, Herman M.
Charles E. Merrill, 1980
Buku Teks SO