Mahrus Ali
Arti Bumi Intaran, 2008
Buku Teks
Sahetapy, J.E., author
Eresco, 1994
Buku Teks
H. Setiyono
Bayumedia Publishing, 2005
Buku Teks
Universitas Indonesia, 1985
UI - Skripsi (Membership)
Andrey, author
Fakultas Hukum Universitas Indonesia, 2001
UI - Skripsi (Membership)