Panduan... (2012). Panduan praktis spss 20. Andi.
Chicago Style (17th ed.) CitationPanduan... Panduan Praktis Spss 20. Andi, 2012.
MLA (8th ed.) CitationPanduan... Panduan Praktis Spss 20. Andi, 2012.
Warning: These citations may not always be 100% accurate.