Kaufman, Peter B.; Carlson, Thomas F.; Dayanandan, P.; Evans, Michael L.; Fisher, Jack B.; Parks, Clifford; Wells, James R.
Harper & Row, 1989
Buku Referensi
Stern, Kingsley R.
McGraw-Hill, 2000
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Huxley, Anthony
Four Walls Eight Windows, 1984
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Henslow, John Stevens
cambridge University Press, 2013
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Manetas, Yiannis
[, Springer], 2012
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