Universitas Indonesia, 1995
UI - Skripsi (Membership)
Universitas Indonesia, 1996
UI - Skripsi (Membership)
Sutarno
Alfabeta, 2005
Buku Teks
Sutarto
[publisher not identified], [date of publication not identified]
Buku Teks
Tri Trisnaningsih
Fakultas Hukum Universitas Indonesia, 1991
UI - Skripsi (Membership)