Gaya APA
S.Pd, L, M, Y.
(2022).
Osn Olimpiade sains Nasional Geografi
.
Yogyakarta:
Pustaka Press.
Gaya MLA
S.Pd, Lutfi, Marisa, Yusufiana,.
"Osn Olimpiade sains Nasional Geografi".
Yogyakarta:
Pustaka Press,
2022.
Text.