Universitas Indonesia, 1985
UI - Skripsi (Membership)
Sudargo Gautama, author
Eresco, 1989
Buku Teks
Silaban, Rionald, author
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Sudargo Gautama, author
Citra Aditya Bakti, 1991
Buku Teks
Sudargo Gautama, author
Alumni, 1979
Buku Teks