Máquinas Vending

Where Do I Buy The Powders For My Coffee Vending Machine?

I just bought a coffee vending machine from someone and when I opened it, it asks for different kinds of powders. I want to know where I can purchse these powders so it makes a cup properly. Here is a pic of my machine http://images.craigslist.org/011506010306010407200808255b5325b56770db1eba00862c.jpg