Kammen, Michael
Gadjah Mada University Press, 1977
Buku Teks
Edited by Nancy Partner, Sarah Foot
SAGE, 2013
Buku Teks SO
Brinton, Crane, 1898-1968
Prentice-Hall, 1960
Buku Teks
Bloomsbury Academic, 2014
Buku Teks
Davis, James Cushman
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Buku Teks