Gaya APA
Gondokesumo, M, E., Leliga, F, K.
(2019).
Covid-19
.
Yogyakarta ::
Graha Ilmu.
Gaya MLA
Gondokesumo, Marisca, Evalina., Leliga, Fenny, Kusuma.
"Covid-19".
Yogyakarta ::
Graha Ilmu,
2019.
Text.