Gaya APA
Muhadjir, N.
(2017).
Positive psychology forth edition 2017
(
Cet. 1.)
.
Yogyakarta:
Rake Sarasin.
Gaya MLA
Muhadjir, Noeng.
"Positive psychology forth edition 2017".
Cet. 1.
Yogyakarta:
Rake Sarasin,
2017.
Text.