Gaya APA
A, N.
(2021).
Buletin Berkala Merapi Vol. 27, No. 1 Edisi April 2021
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Yogyakarta:
BPPTKG.
Gaya MLA
A, Nuraning.
"Buletin Berkala Merapi Vol. 27, No. 1 Edisi April 2021".
Yogyakarta:
BPPTKG,
2021.
Text.