How to get the URL of the entity reference node? I'm building a site of course video，one course includes many video clips. I have created 2 content types, one is for the Course ,and the other is for the Video. 

In the course content type, I set a field of entity reference to make a relation between course and video.

And then I create a view to display the video list on the video node page, it works. I wonder how can I add the link of the relative course node page on this video node page, how can I get the URL of the entity referenced course node page?

Any help would be great! Thanks in advance.
This is a very late answer, but hopefully it will help others looking to get the raw URLs for related content (especially if you're building a custom theme file for the view).

In the view: 


Under "Relationships", add a Entity Reference: Referenced Entity relationship for the related field. 
Under "Fields", add a Content: Path field
Set that field to use the relationship.
In the field settings, deselect label; under style settings, set the wrapper HTML to none.
Under "Rewrite Results", select "Rewrite the output of this field"
Use the replacement patterns to add just the [path] token. If you already have a separate Path field selected in the view, it may show up as [path_1] or a similar name.
Save &amp; test the view.