Yes, you can, but under two conditions:
1. If the copyright holder has posted this material in the public domain, you can leave links to this resource (videos, books, educational materials, pages on the Internet).
2. When creating the course, you ticked "is Public" in the Advanced section. This does not impose any restrictions on your course, it just makes it clear to users that the author uses additional sources during development.
*If you complain about the misuse of copyrights, we will be forced to delete the module with this information and block your profile in case of repeated violations