Wenger, Leopold, author
Veritas press, 1940
Buku Teks
Mousourakis, George
Springer, 2012
eBooks
Sitanggang, Eriska Fajrinita, author
Fakultas Hukum Universitas Indonesia, 2021
UI - Skripsi (Membership)
Shaskia Putri Ramadhani, author
Fakultas Hukum Universitas Indonesia, 2018
UI - Skripsi (Membership)
James, Fleming
Little, Brown and Company, 1977
Buku Teks