Gaya APA
Putra, Y, C., Flo, .
(2013).
Senior High Stress
.
Yogyakarta:
Gradien Mediatama.
Gaya MLA
Putra, Yoga, Cahya., Flo, .
"Senior High Stress".
Yogyakarta:
Gradien Mediatama,
2013.
Text / Book.