Foenander, Orwell De R., author
The Law Book, 1962
Buku Teks
Sutcliffe, J.T., author
Macmillan, 1967
Buku Teks
Levinson, Charles, author
George Allen & Uniwin, 1972
Buku Teks
Ellem, Bradon, author
New South Wales University Press, 1989
Buku Teks
Bussolo, Maurizio, author
The World Bank, 2009
Buku Teks