APA (7th ed.) Citation

Riyanto. (2012). Serba gratis: E-mail, messenger, blog, domain, hosting, CMSforblog dan e-commerce. Gava Media.

Chicago Style (17th ed.) Citation

Riyanto. Serba Gratis: E-mail, Messenger, Blog, Domain, Hosting, CMSforblog Dan E-commerce. Gava Media, 2012.

MLA (8th ed.) Citation

Riyanto. Serba Gratis: E-mail, Messenger, Blog, Domain, Hosting, CMSforblog Dan E-commerce. Gava Media, 2012.

Warning: These citations may not always be 100% accurate.