Saville-Troike, Muriel, 1936-
Cambridge University Press , 2006
Buku Teks
Mitchell, Rosamond
Arnold, 1998
Buku Teks
Saville-Troike, Muriel, 1936-
Cambridge University Press, 2012
Buku Teks
Cambridge University Press, 2009
eBooks
Danuta Gabrys-Barker
Springer, 2012
eBooks