Get all posts with attachments

Hi!

I’m using two nested loops to get all posts with one or more attachments:

$wp_query = new WP_Query(array('post_type' => 'magazine',
                               'paged' => $paged,
                               'posts_per_page' => 10
            ));
while ( have_posts() ) : the_post();
    $args = array('order' => 'ASC',
                  'post_type' => 'attachment',
  		  'post_parent' => $post->ID,
 		  'post_mime_type' => 'application/zip, application/pdf',
);
    $attachments = get_posts($args);
    if ($attachments) {
        foreach ($attachments as $attachment) {
	    echo wp_get_attachment_link($attachment->ID);
	}
    }
endwhile;

I was wondering if there’s a way to do the same with just one loop.

Thanks in advance