APA Style
Siregar, I, H. (2020).
Turbin Angin Sumbu Vertikal Berbasis Drag Forces .
Yogyakarta:
deepublish publisher.
MLA Style
Siregar, Indra, Herlamba.
"Turbin Angin Sumbu Vertikal Berbasis Drag Forces".
Yogyakarta:
deepublish publisher,
2020.
Text.