Gaya APA
Riyanto, . (2012).
Serba gratis E-Mail, Messenger, Blog, Domain, Hosting, CMS for Blog and E-Commerce (Cet. 1).
Yogyakarta:
Gava Media.
Gaya MLA
Riyanto, .
"Serba gratis E-Mail, Messenger, Blog, Domain, Hosting, CMS for Blog and E-Commerce".
Cet. 1
Yogyakarta:
Gava Media,
2012.
Textbook.