Gaya APA
EBOOK : IBM SPSS Statistics 25 Step by Step A Simple Guide and Reference, 15th Edition. (2019).
New York:
Routledge.
Gaya MLA
EBOOK : IBM SPSS Statistics 25 Step by Step A Simple Guide and Reference, 15th Edition.
15.
New York:
Routledge,
2019.
Text.