OK, fair enough. I can't help with any suggestions for books though, sorry. You might try similar searches on Amazon. For reference, you'll probably get a be

OK, fair enough. I can't help with any suggestions for books though, sorry. You might try similar searches on Amazon. For reference, you'll probably get a better response if you demonstrate that you've already exhausted or rejected the usual sources of information. That way people won't track over the same territory needlessly.