Gaya APA
Covey, S.
(2020).
GOOB AND HIS GRANDPA
(
1st ed.)
.
Jakarta:
PT BPK Gunung Mulia.
Gaya MLA
Covey, Sean.
"GOOB AND HIS GRANDPA".
1st ed.
Jakarta:
PT BPK Gunung Mulia,
2020.
Text.