Wilde, Mark M, author
Cambridge University Press, 2017
eBooks
Burch, John G., author
Hamilton Publishing, 1974
Buku Teks
edited by Diane H. Sonnenwald
Universityy of Texas Press, 2016
Buku Teks
Hamming, Richard W., author
Prentice-Hall, 1980
Buku Teks
Ingels, Franklin M., author
Intext Educational, 1971
Buku Teks