Callister, William D., Jr., 1940-, author
John Wiley & Sons, 2011
Buku Teks
Lefteri, Chris
Rotovision, 20062
Buku Teks
Smith, William F., author
McGraw-Hill, 1993
Buku Teks
Shackelford, James F., author
Prentice Hall International, 1996
Buku Teks
Raghavan, V.
Prentice Hall of India, 1996
Buku Teks