Help me count the outs

I am not seeing the eight outs here. Please help.
In the hand quizzes of SSH p209 hand 6.
You have KhKd under the gun. You raise. Two Players cold-call, and the blinds call (10 small bets). the flop is Jh6d3h. The blinds check, you bet, and everyone calls (7.5 big bets). the turn is the Qs. The small blind bets, and the big blind calls. What do you do?

The books says I have 8 outs to beat two pair. I don't see 8 outs I see 2, the other K's.
What did I miss here?