Jaensch, Dean Harold
[publisher not identified], 1977
Buku Teks
House of Assembly, 1972
Buku Teks
Boles, John B., author
Blackwell Publishers, 2002
Buku Teks
Southworth, Franklin C., author
Routledge, 2005
Buku Teks
Gandhi, M.K.
Ahmedabad Navajivan Publishing House 1928
Buku Teks