diff --git a/core-java-modules/core-java-numbers-5/README.md b/core-java-modules/core-java-numbers-5/README.md
index dd80febce9..d7e37d0ee7 100644
--- a/core-java-modules/core-java-numbers-5/README.md
+++ b/core-java-modules/core-java-numbers-5/README.md
@@ -1,2 +1,3 @@
 ### Relevant Articles:
 - [Check if a Number Is Odd or Even](https://www.baeldung.com/java-check-number-parity)
+- [How to Check Whether an Integer Exists in a Range with Java](https://www.baeldung.com/java-interval-contains-integer)