Gaya APA
Shepherd, P. (2021).
The Positive approach : manfaat berfikir & bersikap positif (Cet. V).
Yogyakarta:
Bright Publisher.
Gaya MLA
Shepherd, Peter.
"The Positive approach : manfaat berfikir & bersikap positif".
Cet. V
Yogyakarta:
Bright Publisher,
2021.
TEXT.