Question

What can you include in your paper to ensure that you are avoiding unintentional plagiarism

Answer 1

There are many things that you can do, I will name a few.
First and foremost is, using Citations. There are certain citation styles that have been developed and agreed-upon within the academic world.
The second thing you can do is by Paraphrasing.

Answer 2

You can use quotation marks and in-text citations to make sure you avoid plagerism