Lorna Weir, Eric Mykhalovskiy.
Routledge, 2010
Buku Teks
Dameri, Renata Paola
Springer Science+Business Media, 2017
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Moore, Mark H
Harvard University Press, 1995
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Martin Schlag, Juan Andres Mercado, editors
[Springer, Springer], 2012
eBooks
Muhammad Yunus
Gramedia pustaka utama, 2008
Buku Teks