Kunde, Jesper
Prentice-Hall, 2000
Buku Teks
Anastasia Jessica Maureen
Fakultas Hukum Universitas Indonesia, 2017
UI - Skripsi (Membership)
Williams, Homer L.
Wiley , 2010
Buku Teks
edited by Donald Watson
McGraw-Hill , 1979
Buku Teks
Yudelson, Jerry
McGraw-Hill, 2009
Buku Teks