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Edward Elgar Publishing, 2013
Buku Referensi
edited by A.H. Robertson
Manchester University Press, 1968
Buku Teks
Shelton, Dinah L., author
Edward Elgar, cop, 2014
Buku Teks
Rita Maran, author
2000
Artikel Jurnal
edited by Dinah Shelton
Oxford University Press, 2013
Buku Teks