Kizza, Joseph Migga, author
Springer, 2017
Buku Teks
Panko, Raymond R., author
Prentice-Hall, 2004
Buku Teks
Wrightson, Tyler, author
McGraw-Hill, 2012
Buku Teks
Perry, William E., author
John Wiley & Sons, 1981
Buku Teks
Bishop, Matt, author
Addison-Wesley, 2003
Buku Teks