http://www.atccti.com/document/nonradar.jpg
There ya go. You'll need to be able to draw it from memory except the seperation rules box at the top left and the holding pattern diagrams along the bottom and around to the Monroe arrivals holding diagram at the top right...oh and you don't have to draw the preplanning procedures info box or the speed time conversion chart. Everything else including the minimum altitudes, radials for the airways and the R931 restriction box you'll have to reproduce for the map test. I'm still in CTI so take anything I say with several grains of salt. I can't see them doing away with the map test though.
I don't know if you are CTI, ex military OTS or whatever. If you've never memorized airspace before (sorry to patronise if you have, just ignore this), take a slow deep breath. The map you'll be given to draw the airspace on will have all the VOR(TAC)s, the ZAE / ZHU ZFW ZAE and ZFW ZHU boundaries which appear as bold lines, you sector boundary which is a dashed line that looks like the state of Idaho flipped on its other side as well as the dotted lines making up the MOA and restricted area. Draw them out on another 18 by 11 sheet, have it laminated and practice drawing with dry erase pens.
Take it in small chunks maybe 3 airways at a time until you have them all then add to it the other airports, frequencies etc. Also, look for patterns to help you out in the start. Look closely enough and you'll cut what you have to memorize by 25%.