/**
  * Get civil data
  * @param  integer $nik   civil unique indentity
  * @param  string $field requested column name
  * @return array        normalized civil data
  */
 private function getPenduduk($nik, $field)
 {
     $reqCols = $this->getSelectedCols($field);
     if (!empty($reqCols)) {
         $model = new ApiResources();
         $data = $model->getPenduduk($nik, $reqCols);
         return $this->exchangeData($data);
     }
 }