Academic Press, 2015
eBooks
Hyman, David N., author
Cengage Learning, 2014
Buku Teks
edited by Fritz Morstein Marx
Prentice-Hall, 1952
Buku Teks
Edited by Daniela Giannetti, Kenneth Benoit
Routledge Taylor & Francis Group, 2016
Buku Teks
Gatti, Stefano
Elsevier, 2008
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