Davis, Gordon B.
Business One Irwin, 1993
Buku Referensi
Luftman, Jerry N.
Pearson Education, 2004
Buku Teks SO
Raden Dimas Nugroho
Fakultas Ilmu Komputer Universitas Indonesia, 2017
UI - Tugas Akhir
Evans, Philip
Harvard Business School Press, 2000
Buku Teks
Wafistrietman Corris
Fakultas Ilmu Komputer Universitas Indonesia, 2017
UI - Tugas Akhir