The Oracle APEX Guide - Website Linking
You may link to The Oracle APEX Guide web site providing you comply with our terms and conditions. A link created by a third party organisation shall either be text based or an un-modified banner graphic.
We do not object to you linking directly to web pages hosted on our site. However, we do not permit our pages to be loaded into frames on your site. The pages must load into the user's entire window. Images are not permitted to be copied or linked to for display on another web site without prior permission.