Pengiran Ahmad bin Pengiran Mohd.Yusof, Dato Seri Paduka , Haji. <br/><br/>
Adat istiadat Diraja Brunei  [Books]. 
Pengiran Dato Seri Paduka Haji Ahmad bin Pengiran Mohd. Yusof. 
 - Bandar Seri Begawan  Universiti Brunei Darussalam  c[19..] 
 - Pages: 21 
<br/><br/><label>ISBN: </label> 0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Brunei Darussalam -- Social life and Customs.
<br/><br/><label>Dewey Class. No.: </label>DOC 50