Orwell, George, 1903-1950, author
Mariner Books, 2015
Buku Teks
Enric Trillas, Piero P. Bonissone, Luis Magdalena, Janusz Kacprzyk, editors
[Springer, Springer], 2012
eBooks
Artikel Jurnal
edited by Valerian T. D'Souza and Joseph Feder
CRC Press, 1991
Buku Teks
Hoshiarpur Vishvesvaranand Institute Publications 1954
Buku Teks