Gaya APA
Riyanto, . (2012).
Serba Gratis E-Mail, Messenger, Blog, Domain, Hosting, CMSforBlog & e-Commerce .
Yogjakarta:
Gava Media.
Gaya MLA
Riyanto, .
"Serba Gratis E-Mail, Messenger, Blog, Domain, Hosting, CMSforBlog & e-Commerce".
Yogjakarta:
Gava Media,
2012.
Text.