Gaya APA
Riyanto, I.
(2015).
Muslim Muda Miliarder
.
JAKARTA:
PT. Gramedia Pustaka Utama.
Gaya MLA
Riyanto, Ibnu.
"Muslim Muda Miliarder".
JAKARTA:
PT. Gramedia Pustaka Utama,
2015.
Textbook.