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Mizan, 2001
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Sardar, Ziauddin, author
Icon Books, 2000
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Devaney, Robert L., author
Addison-Wesley, 1990
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Albert Wirya S., author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2015
UI - Skripsi Membership
Field, Michael, author
Society for Industrial and Applied Mathematics, 2009
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