Ward, Brice
Blue Ridge Summit TAB Books , 1971
Buku Teks
Brannan, James A.
McGraw-Hill, 2011
Buku Teks
Azhar Kurnia
Fakultas Ilmu Komputer Universitas Indonesia, 2020
UI - Skripsi Membership
Archer, Russell
Prentice-Hall, 1992
Buku Teks
Nugroho Gito Prasojo
Universitas Indonesia, 2005
UI - Tesis Membership