eBook Creator Reference

We are currently in the process of creating an eBook, and we've chosen to improve our instructions by adding YouTube tutorials from creators. We want to make learning easier by organizing information and making it easier to understand. We always give credit to the YouTube creators by linking to their videos (In order for the reader to watch the video he must open it in the browser). This helps readers engage with the material and shows respect for the creators.
Is this kind of reference allowed?

up!