diff --git a/References.md b/References.md
index e14f0ad..12578ab 100644
--- a/References.md
+++ b/References.md
@@ -1 +1,4 @@
-https://elvischidera.com/2022-04-29-philosphy-software-design
\ No newline at end of file
+https://elvischidera.com/2022-04-29-philosphy-software-design
+https://www.cantorsparadise.com/what-is-risk-a-mathematical-approach-e4b4e76fbf06
+https://www.pathsensitive.com/2022/03/abstraction-not-what-you-think-it-is.html
+https://austinhenley.com/blog/teenytinycompiler1.html
\ No newline at end of file