Septo Soepiyatno, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2007
UI - Tesis (Membership)
Tri Agustin, author
Universitas Indonesia, 2013
UI - Tesis (Membership)
Rahma Rosalia Afirda, author
Universitas Indonesia, 2014
UI - Tesis (Membership)
The IOG chronicle
Prosinergi Multitama, 2002
Buku Referensi
Fatimah Zahra, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)