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Gaya APA
oetomo, B, S.(2002).Perencanaan dan Pembangunan Sistem Informasi .Yogyakarta:Yogyakarta:penerbit andi.
Gaya MLA
oetomo, Budi, Sutedjo."Perencanaan dan Pembangunan Sistem Informasi".Yogyakarta:Yogyakarta:penerbit andi,2002.Text.