Attaching QCA Codes Posted on May 3, 2018May 24, 2019 by Viv Please click here: Attaching-QCA-Codes Reviewed on 24/5/19 How useful was this article? Click on a star to rate it! Submit Rating Average rating / 5. Vote count: No votes so far! Be the first to rate this post. Posted in Examinations and tagged QCA.