Gaya APA
Wasito, R., Wuryastuti, H.
(2020).
CORONAVIRUS, Sars - Mers - Covid-19
.
Yogyakarta:
Andi Offset.
Gaya MLA
Wasito, R.., Wuryastuti, Hastari.
"CORONAVIRUS, Sars - Mers - Covid-19".
Yogyakarta:
Andi Offset,
2020.
Text.