Engler, Calvin, author
Irwin, 1989
Buku Teks
Jorg Kienzle, editor
[Springer-Verlag, ], 2012
eBooks
The National Computers Centre for Iraq NCC
IBI, 1975
Buku Teks SO
Stettler, Howard F., author
Prentice-Hall, 1956
Buku Teks
Georgetown University Press, 1972
Buku Teks