Artikel Jurnal
Lewis, Clive, author
Thomson Reuters, 2009
Buku Teks
Sambidge, Gordon, author
Piccadilly Press Ltd., 1992
Buku Referensi
Adrian Wahyu Christ Dewandaru, author
Fakultas Hukum Universitas Indonesia, 2023
UI - Skripsi Membership
Spry, I.C.F.
G.W. Green & Sons PTY Ltd., 1971
Buku Teks