Alexander, John W., author
Prentice-Hall, 1979
Buku Teks
Gregor, Howard F., author
Van Nostrand Reinhold, 1963
Buku Teks
Warf, Barney, editor
Springer, 2012
eBooks
Mackinnon, Danny, author
Pearson, Prentice Hall, 2007
Buku Teks
Spidchenko, K.
Progress , 1972
Buku Teks