Mao`z, Moshe
Clarendon Press, 1995
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Abou-El-Fadl, Reem, author
Cambridge University Press, 2018
eBooks
Tolstoy, Leo, graf, 1828-1910, author
Penguin Books, 2016
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Macchiavelli, author
Da Capo Press, 2001
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Hansen, Harry, author
A Mentor Book, 1961
Buku Teks