Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1998
UI - Skripsi (Membership)
Artikel Jurnal
Rahmawati Zulfa, author
Universitas Indonesia, 2002
UI - Skripsi (Membership)
Surya Maulidina, author
2009
UI - Tesis (Open)
Situmorang, Sahala Tua Paulus, author
Universitas Indonesia, 1995
UI - Skripsi (Membership)