Gaya APA
Elvera, ., Astarina, Y.
(2021).
Metodologi penelitian
(
ed.1, cet.1)
.
Yogyakarta:
Andi Offset.
Gaya MLA
Elvera, ., Astarina, Yestta.
"Metodologi penelitian".
ed.1, cet.1
Yogyakarta:
Andi Offset,
2021.
Text.