Gaya APA
Wesrtiningsih, .
(2012).
Shortcourse Series SPSS 20
(
I)
.
Semarang:
Andi Publisher, Wahana Komputer.
Gaya MLA
Wesrtiningsih, .
"Shortcourse Series SPSS 20".
I
Semarang:
Andi Publisher, Wahana Komputer,
2012.
Book.