Hassul, Michael, author
Prentice-Hall, 1997
Buku Teks
Mottershead, Allen
Prentice Hall of India, 1985
Buku Teks
Paynter, Robert T.
Prentice Hall International, 1997
Buku Teks
Garud, G.N
McGraw-Hill, 1983
Buku Teks
Tracton, Ken
G/L Tab Books, 1975
Buku Teks