Cao Bằng thực lục (高平實錄) by Nguyễn Hựu Cung/阮祐恭 (Bế Hựu Cung/閉祐恭) in 1810.<br>
Institute of Sino-Nom studies library number: A.1129
Nguyễn Hựu Cung (阮祐恭)
<ul><li><a rel="nofollow" class="external text" href="http://yeuhannom.blogspot.com/2017/09/a1129.html">高平实録A.1129</a>, Hán Nôm blog (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20221123080725/http://yeuhannom.blogspot.com/2017/09/a1129.html">Archive</a>)</li></ul><ul><li>Translation: <a rel="nofollow" class="external text" href="http://yeuhannom.blogspot.com/2017/06/cao-bang-thuc-luc-1129.html">Cao Bằng thực lục, A. 1129</a>, Hán Nôm blog (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20221123080819/http://yeuhannom.blogspot.com/2017/06/cao-bang-thuc-luc-1129.html">Archive</a>)</li></ul>