Gaya APA

Riyanto, . (2012). Serba Gratis : E-Mail, Messenger, Blogging, Domain, Hosting, CMS For Blog & E-Commerce (Cet. 1.). Yogyaarta: Gava Media.

Gaya MLA

Riyanto, . "Serba Gratis : E-Mail, Messenger, Blogging, Domain, Hosting, CMS For Blog & E-Commerce". Cet. 1. Yogyaarta: Gava Media, 2012. Buku.