Wijanarko, W. (2005). Step by Step SPSS 13 Analisis Data Statistik. Yogyakarta : Andi.
Chicago Style (17th ed.) CitationWijanarko, Wahyu. Step by Step SPSS 13 Analisis Data Statistik. Yogyakarta : Andi, 2005.
MLA (8th ed.) CitationWijanarko, Wahyu. Step by Step SPSS 13 Analisis Data Statistik. Yogyakarta : Andi, 2005.
Warning: These citations may not always be 100% accurate.