Gaya APA
RIYANTO, S.
(0).
The secret of a smart high school student/ Slamet Riyanto
.
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
RIYANTO, Slamet.
"The secret of a smart high school student/ Slamet Riyanto".
Yogyakarta:
Pustaka Pelajar,
0.
Text.