Gaya APA
PKK, P, A, M, K.
(2021).
WASPADA PENULARAN COVID- 19
.
Yogyakarta:
ARRUZZ MEDIA.
Gaya MLA
PKK, Prof.Dr.dr., Anies,, M, Kes,.
"WASPADA PENULARAN COVID- 19".
Yogyakarta:
ARRUZZ MEDIA,
2021.
Text.