Universitas Indonesia, 1994
UI - Skripsi (Membership)
Sudargo Gautama, author
Citra Aditya Bakti, 1994
Buku Teks
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Buku Teks
Damanik, Rachmaihut, author
Universitas Indonesia, 1995
UI - Skripsi (Membership)