diff --git a/_modules/week-02.md b/_modules/week-02.md
index c8fa01b..d38438a 100644
--- a/_modules/week-02.md
+++ b/_modules/week-02.md
@@ -12,7 +12,7 @@ Aug 28
 Aug 30
 : [Buffer Overflow Attacks]()
   : 
-  : <details title="recommended readings" class="my"><summary><i class="icon fas fa-book-reader "></i></summary><span class="fs-2">Read: <a href=http://phrack.org/issues/49/14.html#article>Smashing the Stack for Fun and Profit by Aleph One</a>; Optional: 0×300-0×320 from Hacking book. 0×200-0×270 if you don't have a strong C background.</span></details>
+  : <details title="recommended readings" class="my"><summary><i class="icon fas fa-book-reader "></i></summary><span class="fs-2" markdown=1>Read: [Smashing the Stack for Fun and Profit by Aleph One](http://phrack.org/issues/49/14.html#article); Optional: 0×300-0×320 from [Hacking book](http://www.lib.purdue.edu/holdings?isbn=9781593271442&course=202410-CS-42600). 0×200-0×270 if you don't have a strong C background.</span></details>
 
 Sep 01
 : [Buffer Overflow Attacks 2]()