These are from 2016 (as I recall.) You must have current version when you are instructing, I do not know which, if any, are still current. Even if not you may find them helpful as a student in any of these subjects.
Fee free to make an offer. I have a LOT of stuff listed here, click on my profile to see all my posts.
Fee free to make an offer. I have a LOT of stuff listed here, click on my profile to see all my posts.