Gaya APA
tekni searc engine optimization. (2008).
JAKARTA:
KOMPAS GRAMEDIA.
Gaya Chicago
tekni searc engine optimization.
.
JAKARTA:
KOMPAS GRAMEDIA,
2008.
Text.
Gaya MLA
tekni searc engine optimization.
.
JAKARTA:
KOMPAS GRAMEDIA,
2008.
Text.
Gaya Turabian
tekni searc engine optimization.
JAKARTA:
KOMPAS GRAMEDIA,
2008.
Print.