Gaya APA
Suwartono, .
(2014).
Dasar-dasar Metodologi Penelitian
(
1)
.
Yogyakarta:
Andi offset.
Gaya MLA
Suwartono, .
"Dasar-dasar Metodologi Penelitian".
1
Yogyakarta:
Andi offset,
2014.
Printed Book.