Gaya APA
Yulir, Y.
(2017).
Geografi 2 SMA Kelas XI
(
ed.2)
.
Jakarta Timur:
Yudhistira.
Gaya MLA
Yulir, Yulmadia.
"Geografi 2 SMA Kelas XI".
ed.2
Jakarta Timur:
Yudhistira,
2017.
Printed Book.