Garoche, Pierre
New York, N.Y. Cornell Maritime Press 1949,
Buku Teks
London: Tiger Books International, 1994,
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Sraffa, Piero
Cambridge The University Press 1960,
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Eva Illouz.
Routledge , 2018
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Kaufman, P.J.
John Wiley , 1980
Buku Teks