Purba, Achmad Zen Umar
Badan Penerbit FH UI, 2011
Buku Teks
Purba, Achmad Zen Umar
Faculty of Law University of Indonesia, 2011
Artikel Jurnal
Purba, Achmad Zen Umar
Badan Penerbit FH UI - Alumni, 2011
Buku Teks
Universitas Indonesia, 1996
UI - Skripsi (Membership)
Gervais, Daniel
Sweet & Maxwell, 2009
Buku Teks