it wasn't the source which was the issue the guy who reverted wrote february white cat talk contribs bytes the validity of the genetic study is disputed therefoee i do not believe it is ok to put that into the infobox see origins of the kurds validity and reliability of such genetic studies undo so it seems he questioned the validity of dna studies in general not this particular one but i assume wikipedia should be based on science so i've put it in again anyhow here's a source there are many different studies that confirm the same it's just a matter of picking an choosing