Auslander, David M.
Prentice-Hall, 1990
Buku Teks
Blackman, Maurice
John Wiley & Sons, 1975
Buku Teks
Anugrah Ramadhani
Fakultas Ilmu Komputer Universitas Indonesia, 2009
UI - Skripsi Open
Hocky Yudhiono
Fakultas Ilmu Komputer Universitas Indonesia, 2022
UI - Skripsi Membership
Burns, Alan
Addison-Wesley, 1990
Buku Teks SO