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Gaya APA

Siahaan, D. (2012). Analisa Kebutuhan Dalam Rekayasa Perangkat Lunak . Indonesia: Andi Yogyakarta.

Gaya MLA

Siahaan, Daniel. "Analisa Kebutuhan Dalam Rekayasa Perangkat Lunak". Indonesia: Andi Yogyakarta, 2012. Text.