I know that most of the BC JC recipe drops are world drops, but does anyone know if there are certain places that they might generally drop?  Like off certain bosses or mobs or even mining? Dont mind farming would just like a some areas as to where to do it. Any help appreciated. TY :)

there is one recipe that drops off a shadowmancer in shadowmoon valley. took me about 50 kills to get it. think it was the khorium band of shadows, but i could be wrong. check out wow wiki and they will list where they may drop if they have a specific location. plus, many will drop in outland instances.