Gaya APA
waloeya, Y, J.
(2011).
Tips & Tricks Series Google SEO
.
Yogyakarta:
CV. Andi Offset.
Gaya MLA
waloeya, Yohan, Jati.
"Tips & Tricks Series Google SEO".
Yogyakarta:
CV. Andi Offset,
2011.
Text.