Komputer, W. Panduan Praktis SPSS 20. Andi Yogyakarta.
Chicago Style (17th ed.) CitationKomputer, Wahana. Panduan Praktis SPSS 20. Andi Yogyakarta.
MLA (8th ed.) CitationKomputer, Wahana. Panduan Praktis SPSS 20. Andi Yogyakarta.
Warning: These citations may not always be 100% accurate.