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Gaya APA

Sawangan, T, P, K. (2005). Peran Pelaku Ekonomi dalam Pelestarian Lingkungan . Jakarta: Depdiknas.

Gaya MLA

Sawangan, Tim, PPPG, Kejuruan. "Peran Pelaku Ekonomi dalam Pelestarian Lingkungan". Jakarta: Depdiknas, 2005. Text.