Stepanus Sahala S., author
Universitas Indonesia, 1999
UI - Tesis (Membership)
Pulung Karo Karo, author
1998
UI - Tesis (Membership)
Irmansyah, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2000
UI - Tesis (Membership)
Nurlely Koesoemah, author
Universitas Indonesia, 2001
UI - Tesis (Membership)
Nunung Subiyanto, author
2003
UI - Tesis (Membership)