Stout, Melville B.
Prentice Hall of India, 1981
Buku Teks
Beckwith, T. G. (Thomas G.), author
Addison-Wesley, 1982
Buku Teks
Braccio, Michael
Reston Publishing Company, Inc., 1978
Buku Teks
Kantrowitz, Philip
Prentice-Hall, 1979
Buku Teks
Tiedemann, Arthur T.
Allyn and Bacon, 1967
Buku Teks