good way to start on Khachaturian is go from William Kapell.Who was once called the 'Khachaturian man' (for his exclusive attention on the composer)He might have written some article about the composer that might be helpful, but i think it's pretty hard to find material even about the pianist.
I have Kapell's chopin sonata CDs. I think he plays the Sonata 3 presto more fluently than many of the pianists out there.