Birth certificate of Đỗ Kế Giai's son.
Republic of Vietnam
<a rel="nofollow" class="external text" href="https://www.vietnam.ttu.edu/virtualarchive/items.php?item=1849011073000">Orderly Departure Program (ODP) Application File for Do Ke Giai</a> (<a rel="nofollow" class="external text" href="https://vva.vietnam.ttu.edu/images.php?img=/images/1849/1849011073000.pdf">PDF</a>)