Goodspeed, Stephen S.
Oxford University Press, 1963
Buku Teks
Hill, Norman
Harper & Brothers, 1952
Buku Teks
Dunn, Frederick Sherwood
Johns Hopkins Press, 1929
Buku Teks
Waincymer, Jeffrey
Kluwer Law International, 2012
Buku Referensi
Vivi Varlina
2018
UI - Tesis Membership