Gaya APA
RICKI, Y., ZULI, N. (2017).
Statistika Penelitian : Plus Tutorial SPSS (Ed.1, cet.1).
Yogyakarta:
Innosain.
Gaya MLA
RICKI, Yuliardi., ZULI, Nuraeni.
"Statistika Penelitian : Plus Tutorial SPSS".
Ed.1, cet.1
Yogyakarta:
Innosain,
2017.
Text.