Recomended map of Croatia, Slovina please

jenny1

I have been trying to find a spiral bound plastic coated road atlas of Croatia, Slovina, we do have a sat nav, but hubby likes to have an atlas as backup, and as I get the job of trying to follow the route on the map ,(I am not a good navigator) plastic coating means I can mark the route with a chinagraph pencil which would make for less stress, if anyone can recomend a  good one would be grateful .