I have been lucky enough to snag myself a copy of Knitted Stockings from Turkish villages by Professor Kenan Özbel.
This has a terrific number of black and white charts of Turkish socks and charts of smaller motifs, as well as black and white photos for Turkish socks, but doesn't give any instructions for knitting them. There are also some droolworthy colour photos of colourwork socks in there, and you can see the vast majority of these colour photos at the Turkish Culture Portal.
I made these toe-up socks with Turkish motifs for my Mum because it's winter in Aus right now. I got lazy at the heel and used a PGR short-row heel though instead of a peasant heel like in proper Turkish socks.