Gaya APA
Gondokesumo, M, E., Leliga, F, K.
(2020).
Covid-19
(
1 [cet.1])
.
Yogyakarta:
Graha Ilmu.
Gaya MLA
Gondokesumo, Marisca, Evalina., Leliga, Fenny, Kusuma.
"Covid-19".
1 [cet.1]
Yogyakarta:
Graha Ilmu,
2020.
Text.