Howkins, Adrian, author
Oxford University Press, 2017
eBooks
Fogg, G. E. (Gordon Elliott), 1919-, author
Cambridge Universitry Press, 1992
Buku Teks
Rothwell, Donald R
The Federation Press, 1997
Buku Teks
Hooker, M. B., author
Malaya Law Review, 1967
Buku Teks
Rapoport, Amos, author
Plenum Press, 1990
Buku Teks