An authoritative site can provide high quality backlinks which are very important to your site to increase domain authority and other criteria.
Backlinks from EDU site are super authoritative and great for your site authority. On the other hand, Google will evaluate your site that's why your site can get a higher rank.
What I’ll do?
First, I will research your website and write a relevant article. Then, I will then post the article on a high authority site, from where you will get two dofollow inbound backlinks. I will make your site showed up on a high-quality edu site, which will increase your website DR and DA.