Gaya APA

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Sigma : Jurnal Sains Dan Teknologi. (2006). Jakarta,: Lembaga Penelitian Universitas Sanata Dharma (LPUSD).

Gaya MLA

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Sigma : Jurnal Sains Dan Teknologi. 1. Jakarta,: Lembaga Penelitian Universitas Sanata Dharma (LPUSD), 2006. Buku Teks.