Gaya APA
Trihendradi, C.
(2010).
Step by Step SPPS 18 Analisis Data Statistik
(
1)
.
Yogyakarta:
Andi.
Gaya MLA
Trihendradi, C..
"Step by Step SPPS 18 Analisis Data Statistik".
1
Yogyakarta:
Andi,
2010.
Text.