How to set permission for many role in wiki page ?

Suppose I have 4 roles in the system (e.g., Student, Parents, and Director)

I have created many wiki pages. All roles can access some pages, but some roles can not access some pages.

For example, the wiki page that describes the school process, this wiki page cannot be viewed by students.

So how should I set up or manage my system?

Could someone guide me?
Thank You. :pray: