diff --git a/core-java-modules/core-java-numbers/src/test/java/com/ossez/number/foramt/NumberFormatExceptionTest.java b/core-java-modules/core-java-numbers/src/test/java/com/ossez/number/foramt/NumberFormatExceptionTest.java
index 3a71a8fbe6..76de601f22 100644
--- a/core-java-modules/core-java-numbers/src/test/java/com/ossez/number/foramt/NumberFormatExceptionTest.java
+++ b/core-java-modules/core-java-numbers/src/test/java/com/ossez/number/foramt/NumberFormatExceptionTest.java
@@ -15,6 +15,8 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
 /**
  * String format to number with NumberFormatException
  *
+ * <p><a href="https://www.ossez.com/t/java-numberformatexception/13986">https://www.ossez.com/t/java-numberformatexception/13986</a></p>
+ *
  * @author YuCheng
  */
 @TestInstance(TestInstance.Lifecycle.PER_METHOD)