Winker, Carol K.
In The name of terorism
State University of New York Press, 2006
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Eco, Umberto
The name of the rose
Harcourt Brace Jovanovich, 1983
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Hyde, Simeon
Composition of the essay
Addison-Wesley Publishing Company, Inc., 1967
 Buku Teks SO
Portnoy, Ethel
Genietingen essay
Meulenhoff, 1998
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The art of the essay
edited by Leslie A. Fiedler
Thomas Y. Crowell, 1958
 Buku Teks SO