public function prev($title = '<< Previous', array $options = [])
    {
        $defaults = [
            'url' => [],
            'model' => $this->defaultModel(),
            'disabledTitle' => $title,
            'escape' => true,
        ];
        $options += $defaults;
        $options['step'] = -1;

        $enabled = $this->hasPrev($options['model']);
        $templates = [
            'active' => 'prevActive',
            'disabled' => 'prevDisabled'
        ];

        return $this->_toggledLink($title, $enabled, $options, $templates);
    }