Linking back to a file in Box in HTML

Wondering if its possible to link to a file directly in box.  I'm trying to create a menu tree using HTML that can be opened on the box app on the apple iphone.  When the HTML file is opened, it processes the HTML and looks like a web page.  What I'm trying to do specifically is link back to another html file within the same directory itself.

I used shared links, but when the link is clicked, it directs you to sign on again -- via web page.  After signing on, it says the administrator disabled that feature. 

Regular links to external sites works fine.  Just not internal back to box.  Any suggestions?  Thanks.