Risman, author
Universitas Indonesia, 1992
UI - Skripsi Membership
Universitas Indonesia, 2000
UI - Skripsi Membership
Samosir, Minar, author
Universitas Indonesia, 1998
UI - Skripsi Membership
Debby Astari, author
Universitas Indonesia, 2005
UI - Tesis Membership
Sofiani, author
Universitas Indonesia, 1986
UI - Skripsi Membership