Gaya APA
Riyanto, . (2012).
Serba gratis E-mail Meseenger, blog , domain hosting, CMS for blog and E- commerce (cet.1).
Yogyakarta:
Gava MEdia.
Gaya MLA
Riyanto, .
"Serba gratis E-mail Meseenger, blog , domain hosting, CMS for blog and E- commerce".
cet.1
Yogyakarta:
Gava MEdia,
2012.
Text.