Suggestions for a good DVD/Book

I am looking for suggestion chord charts,  lesson book(s) and or dvd(s) for working on playing the Mt. dulcimer chord sytle...  I just done a quick search in the forums and did not see much... It could be due to operator error... loose nut behind the wheel or I am just a few bricks short of a full load...    you can pick the anwser... LOL!