Block, Robert
Yourdon Press, 1983
Buku Teks
Dobson, Michael S., author
American Management Association, 2011
eBooks
Chandra, Prasanna, author
Tata McGraw-Hill, c1980
Buku Teks
Archibald, Russell D., author
John Wiley & Sons, 1976
Buku Teks
Boddy, David, author
Prentice-Hall, 2002
Buku Teks