Damanik, Riza
WALHI, 2006
Buku Teks
Sianturi, Bukti
2007
UI - Tesis Membership
Bobby Ruswin
Fakultas Hukum Universitas Indonesia, 2007
UI - Tesis Membership
edited by Grant S. McClellan
H.W. Wilson Company, 1970
Buku Referensi
editor, Arif Aliadi ... [et al.]
Pustaka Latin, 1999
Buku Teks