O`Donnell, Sandra Martin, author
Prentice-Hall, 1994
Buku Teks
Ward, Brice, author
Blue Ridge Summit TAB Books , 1971
Buku Teks
Brannan, James A., author
McGraw-Hill, 2011
Buku Teks
Azhar Kurnia, author
Fakultas Ilmu Komputer Universitas Indonesia, 2020
UI - Skripsi Membership
Nugroho Gito Prasojo, author
Universitas Indonesia, 2005
UI - Tesis Membership