Dukes, Paul
Longman, 1990
Buku Teks
Dukes, Paul
Longman, 1990
Buku Teks
Nauka, 1993
Buku Teks
Wade, Terence, author
Cambridge University Press, 2009
Buku Teks
Russian-English, edited by Marcus Wheeler and Boris Unbegaun; English-Russian, edited by Paul Falla; revised and updated by Della Thompson
Oxford University Press, 2007
Buku Referensi