Gaya APA
Pennington, T.
(2020).
Panduan Kesiapsiagaan Hadapi Virus Corona
.
Jakarta:
PUSTAKA MAHARDIKA.
Gaya MLA
Pennington, Tess.
"Panduan Kesiapsiagaan Hadapi Virus Corona".
Jakarta:
PUSTAKA MAHARDIKA,
2020.
Text.