diff --git a/src/content/resources/javascript/spread-operator.md b/src/content/resources/javascript/spread-operator.md
index 9a0aa47..542a469 100644
--- a/src/content/resources/javascript/spread-operator.md
+++ b/src/content/resources/javascript/spread-operator.md
@@ -5,6 +5,8 @@ title: "Spread operator"
 created_at: 2019/08/10
 external_resources:
   - "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_syntax"
+  - "https://javascript.info/rest-parameters-spread-operator"
+  - "https://www.freecodecamp.org/news/spread-operator-and-rest-parameter-in-javascript-es6-4416a9f47e5e/"
 ---
 
 # An overview of the spread operator