Brian McLaughlin, Hilary Kornblith.
Wiley Blackwell, 2016
Buku Teks
Daiches, David
University Press , 1948
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House , 1954
Buku Teks
edited by J.V. Cunningham
Fawcett Publications, 1970
Buku Teks
Mcevoy, Sean, author
Routledge, 2006
Buku Teks