Gist, Noel P.
Thomas Y. Crowell, 1956
Buku Teks
Mercer, Charles
Penguin Books, 1975
Buku Teks
Gist, Noel P.
Harper & Row , 1974
Buku Teks
Allen L. Hammond [and others]
Oxford University Press , 1996
Buku Teks
Sebastien Rauch, Gregory M. Morrison, editor
[Springer, Springer], 2012
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