Harris, John
Granada , 1980
Buku Teks
Hussey, David E., author
Pergamon Press, 1976
Buku Teks
Westervelt, James D., editor
Springer, 2012
eBooks
editor, Pau Fonseca i Casas
Information Science Reference, 2014
Buku Teks
Ransom, Robert, author
John Wiley & Sons, 1981
Buku Teks