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Gaya APA

Johan, S. (2011). Studi kelayakan pengembangan bisnis (ed.1,Cet.1). Yogyakarta: Graha Ilmu.

Gaya MLA

Johan, Suwinto. "Studi kelayakan pengembangan bisnis". ed.1,Cet.1 Yogyakarta: Graha Ilmu, 2011. Text.