Smith, Charles A., author
Bhuana Ilmu Populer, 2008
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Irene Phiter, author
Elex Media Komputindo, 2022
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Gurian, Michael, author
Serambi Ilmu Semesta, 2006
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Universitas Indonesia, 2007
UI - Skripsi (Membership)
Ryan Singgih Prabowo, author
2015
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