Hanbury, Harold Grenville, author
Oxford University Press, 1960
Buku Teks
Brenncke, Martin, author
Intersentia, 2018
eBooks
Fersch, Ellsworth A.
Buku Teks
Wright, Charles Alan, author
West Publishing, [1983, ]
Buku Referensi
Wright, Charles Alan, author
West Publishing, 1970
Buku Teks