Erick, author
2005
UI - Skripsi (Membership)
Sompie, Glenn J., author
1987
UI - Skripsi (Membership)
Universitas Indonesia, 2006
UI - Skripsi (Membership)
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1999
UI - Skripsi (Membership)
Daniel Pandapotan, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Tesis (Membership)