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@@ -107,8 +107,6 @@ <h2>Computer Architecture</h2>
     <li><b><a style="text-decoration:none" href="https://codehiddenlanguage.com/" target="_blank">Code: The Hidden Language of Computer Hardware and Software</a></b></li>
     <li><b><a style="text-decoration:none" href="https://www.cc4e.com/" target="_blank">C Programming for Everybody</a></b></li>             
     <li><a style="text-decoration:none" href="https://csapp.cs.cmu.edu/" target="_blank">Computer Systems: A Programmer's Perspective</a></li>
-    <li><a style="text-decoration:none" href="https://www.amazon.com.au/dp/0128119055/" target="_blank">Computer Architecture: A Quantitative Approach</a></li>    
-    <li><a style="text-decoration:none" href="https://www.ddcabook.com/" target="_blank">Digital Design and Computer Architecture</a></li>
     <li><a style="text-decoration:none" href="https://www.amazon.com.au/dp/0131103628/" target="_blank"><span style="color:red">The C Programming Language</span></a></li>    
   </ul>
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