Hendrianto, author
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2000
UI - Tesis (Membership)
Nainggolan, Ermon Denny Hasiholan, author
Universitas Indonesia, 2011
UI - Tesis (Open)
PPW-LIPI, 1996
Buku Teks
Misna Ariati, author
2007
UI - Tesis (Membership)
Nainggolan, Yolanda, author
Universitas Indonesia, 2009
UI - Tesis (Open)