Gaya APA
Riyanto, S.
(2018).
The Secrets of A Smart High School Student
(
Cet. 1)
.
Yogyakarta:
PUSTAKA PELAJAR.
Gaya MLA
Riyanto, Slamet.
"The Secrets of A Smart High School Student".
Cet. 1
Yogyakarta:
PUSTAKA PELAJAR,
2018.
Text.