Narayanan, V. K., author
Prentice Hall 2001, 2001
Buku Teks
Callon, Jack D.
McGraw-Hill Companies, 1996
Buku Teks
Yip, George S., author
Prentice-Hall, 1995
Buku Teks
Millson, Murray R.
Pearson Education, 2007
Buku Teks
Callon, Jack D.
McGraw-Hill , 1996
Buku Teks