Langefors, Borje, author
Petrocelli/Charter, 1975
Buku Teks
Merrett, T.H., author
Reston Publishing, 1984
Buku Teks
Baeza-Yates, Ricardo, author
Addison-Wesley, 2011
Buku Teks
Orna, Elizabeth, author
Gower, 1998
Buku Teks
Heany, Donald F., author
Ronald Press, 1968
Buku Teks