How to load a model of a different module in a controller?

[eluser]yuga[/eluser]
I've succesfully implemented calling model from the module in this way:

Code:

$this->load->module('some_module');
$this->needed_model->method();

class Some_module extends Controller
{
   public function __construct()
      {
           $this->load->model('needed_model');
      }
}