Sounds like a difficult topic you're studying! Not knowing exactly what it is you are studying, and just a small overview of the particular chapter you are asking about, I just can't be definite on my answer, unfortunately. I would just say that I don't think it's an appropriate title as "Theoretical Review" because "Theoretical" can sound as an adjective, modifying and explaining the noun "Review" making it then a statement as that the chapter is only then a review 'in theory', as: not a real or well-researched review of the topic. I don't think you were meaning that. Maybe "A Review of the Theories"? A "Review of Related Literature" would be more specific and would require citations from specific literature (as books, magazines, newspapers) that deal with your thesis which would then cover the "references" you stated, but people might half expect the whole chapter to be only about those pieces of literature, or even literature genres in general (as English literature, French literature, etc.).