public function from($resources)
    {
        settype($resources, 'array');

        //Prepent the resource prefix
        foreach ($resources as &$resource) {
            if (strpos($resource, $this->_prefix) !== 0) {
                $resource = $this->_prefix.$resource;
            }
        }

        $this->from = array_unique(array_merge($this->from, $resources));

        return $this;
    }