Gaya APA
Somantri, L.
(2013).
Advanced Learning Geography I
(
Cet.I)
.
Bandung:
Grafindo Media Pratama.
Gaya MLA
Somantri, Lili.
"Advanced Learning Geography I".
Cet.I
Bandung:
Grafindo Media Pratama,
2013.
Printed Book.