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Gaya APA

Siswanto, V, A. (2012). Strategi dan Langkah-langkah Penelitian . Yogyakarta: Graha Ilmu.

Gaya MLA

Siswanto, Victorianus, Aries. "Strategi dan Langkah-langkah Penelitian". Yogyakarta: Graha Ilmu, 2012. .