Put chick peas in the cold water for 12 hours. Drain them.
Put parsley, corriander, zucchini, potato, garlic, cumin and salt in the food processor and turn it on. The mixture should have consistence of a couscous paste. If its too thick, add some water. Don't overprocess it!
Transform the mixture to the bowl, mix in breadcrumbs, baking soda and seasame, try it and season with salt and pepper if needed.
Form flat balls with wet hands.