Trihendradi, C. (2010). Step by step SPSS 18 analisis data statistik. Andi.
Chicago Style (17th ed.) CitationTrihendradi, Cornelius. Step by Step SPSS 18 Analisis Data Statistik. Andi, 2010.
MLA (8th ed.) CitationTrihendradi, Cornelius. Step by Step SPSS 18 Analisis Data Statistik. Andi, 2010.
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