Gaya APA
Elly basrah Lubis, dkk. ().
Umroh Backpacker .
:
.
Gaya Chicago
Elly basrah Lubis, dkk.
Umroh Backpacker.
:
,
.
Text.
Gaya MLA
Elly basrah Lubis, dkk.
Umroh Backpacker.
:
,
.
Text.
Gaya Turabian
Elly basrah Lubis, dkk.
Umroh Backpacker.
:
,
.
Print.