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Gaya APA
Abdi, U, R, D.(2009).Metodologi Penelitian Sosial dan Ekonomi: Teori dan Aplikasi .Bandung:Alfabeta.
Gaya MLA
Abdi, Usman, Rianse, Dan."Metodologi Penelitian Sosial dan Ekonomi: Teori dan Aplikasi".Bandung:Alfabeta,2009.Text.