Wade, E.C.S. (Emlyn Capel Stewart)
Longmans Green, 1951
Buku Teks
Kortmann, C.A.J.M.
Kluwer Law International, 2007
Buku Teks
Nowak, John E.
Thomson/West, 2010
Buku Teks
Clancey, Richad
Sweet & Maxwell, 2011
Buku Teks
Tan, Kevin, Y.L.
Lexis Nexis, 2010
Buku Teks