pengantar dan catatan, K. Wantjik Saleh
Ghalia Indonesia , 1994
Buku Teks
Jell, Florian, author
Gabler Verlag, 2012
eBooks
Muthia Zahra Feriani, author
Fakultas Hukum Universitas Indonesia, 2013
UI - Skripsi (Membership)
edited by C.P. Ager
Bowker-Saur, 1992
Buku Referensi
Ita Gambiro, author
Sebelas Printing, 1996
Buku Teks