Gellner, Ernest
Blackwell , 1995
Buku Teks
Spindel, Carol.
Vintage Books, 1989
Buku Teks
Gellner, Ernest
Cornell University Press, 2008
Buku Teks
Kellerman, Faye, author
Headline Feature, 1989
Buku Teks
editor, Stanley Sadie, Alison Lathan
Macmillan Press LTD, 1994
Buku Referensi