diff --git a/guide/english/agile/extreme-programming/index.md b/guide/english/agile/extreme-programming/index.md
index 8f3dcc36da..ba03cab7c0 100644
--- a/guide/english/agile/extreme-programming/index.md
+++ b/guide/english/agile/extreme-programming/index.md
@@ -19,3 +19,5 @@ To be more adaptive and captivate their clients, extreme programming is based on
 #### More Information:
 
 <a href='http://www.extremeprogramming.org/rules.html' target='_blank' rel='nofollow'>Rules of Extreme Programming</a>
+<a href='https://dzone.com/articles/extreme-programming-values-principles-and-practice'>Comprehensive breakdown of XP</a>
+<a href='http://manifesto.softwarecraftsmanship.org/'>Manifesto of Software Craftsmanship</a>