Report - BAB II STUDI LITERATUR - library.binus.ac.idlibrary.binus.ac.id/eColls/eThesisdoc/Bab2/TSA-2012-0081 2.pdf11 2.3 Sistem Informasi 2.3.1 Pengertian Sistem Menurut O`Brien (2003, p.8),

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