Sardi, author
Universitas Indonesia, 1998
UI - Tesis Membership
Pulungan, Yogi Retna Lelani, author
2000
UI - Tesis Membership
Tobing, Jimmy, author
2000
UI - Tesis Membership
Pardede, Kartini, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis Membership
Pasaribu, Pardomuan, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis Membership