Artikel Jurnal
Iversen, Carl
Levin & Munksgaard, 1936
Buku Teks
Grubel, Herbert G., author
Stanford University Press, 1966
Buku Teks
Dyah Anggitawati, author
2017
UI - Tesis (Membership)
Lydia Anggun, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Tesis Membership