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Gaya APA

Irwan, Z, D. (2003). Prinsip-Prinsip Ekologi dan Organisasi Ekosistem, Komunitas, & Lingkungan . Jakarta: Bumi Aksara.

Gaya MLA

Irwan, Zoer'aini, Djamal. "Prinsip-Prinsip Ekologi dan Organisasi Ekosistem, Komunitas, & Lingkungan". Jakarta: Bumi Aksara, 2003. Text.