Saville-Troike, Muriel, 1936-
Cambridge University Press, 2006
Buku Teks SO
Saville-Troike, Muriel, 1936-
Cambridge University Press, 2017
Buku Teks SO
Saville-Troike, Muriel, 1936-
Cambridge University Press, 2012
Buku Teks SO
Leaver, Betty Lou
Cambridge Press , 2005
Buku Teks SO
edited by Eric Kellerman and Michael Sharwood Smith
Pergamon, 1986
Buku Teks SO