Seal of the National Institute of Administration (Học-viện Quốc-gia Hành-chánh) of the State of Viet-Nam (Quốc-gia Việt-Nam).
Institut National d'Administration Du Viet-Nam, État du Viêt-Nam
1955-11-07
<a rel="nofollow" class="external text" href="https://www.vietnam.ttu.edu/virtualarchive/items.php?item=6-20-997-116-UA2-9-5-5_001437">Letter from Chau Ngoc Thoi to Vu Quoc Thong, January 12, 1962</a>, Vietnam Center and Sam Johnson Vietnam Archive (<a rel="nofollow" class="external text" href="https://vva.vietnam.ttu.edu/images.php?img=/images/msu/6-20-997-116-UA2-9-5-5_001437.pdf">PDF</a>)