Gaya APA
TRACY, B., adam, B.
(2020).
SENI BERPIKIR POSITIF
(
1)
.
YOGYAKARTA:
BRIGHT PUBLISHER.
Gaya MLA
TRACY, BRIAN., adam, Brian.
"SENI BERPIKIR POSITIF".
1
YOGYAKARTA:
BRIGHT PUBLISHER,
2020.
Text.