Lichtheim, George
Routledge & Kegan Paul, 1964
Buku Teks
Topo Santoso, author
2009
UI - Disertasi (Open)
Heller, Frank A.
Chichester John Wiley & Sons 1981,
Buku Teks
Haigh, Nigel, author
Graham and Trotman, 1986
Buku Teks
Cambridge University Press, 2002
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