diff --git a/3. Module System/index.js b/3. Module System/index.js
new file mode 100644
index 0000000..4b99615
--- /dev/null
+++ b/3. Module System/index.js	
@@ -0,0 +1,13 @@
+// Core Module
+const fs = require("fs");
+// Local Module
+// const localModule = require("./localModule");
+const { printName, PI, student, Human } = require("./localModule");
+// Third Party Module / on node_modules
+// const moment = require("moment");
+
+// console.log(fs);
+// console.log(localModule.printName("Drian"), localModule.PI);
+console.log(student.printStudent(), new Human());
+// console.log(printName("Drian"), PI);
+// console.log(moment);
diff --git a/3. Module System/localModule.js b/3. Module System/localModule.js
new file mode 100644
index 0000000..c3595d6
--- /dev/null
+++ b/3. Module System/localModule.js	
@@ -0,0 +1,31 @@
+const printName = (name) => `Hi, ${name}`;
+
+const PI = 3.14;
+
+const student = {
+  name: "Drian",
+  age: 18,
+  //   printStudent: function () {},
+  //   printStudent: () => {},
+  printStudent() {
+    return `Hi, my name is ${this.name} and iam ${this.age} years old`;
+  },
+};
+
+class Human {
+  constructor() {
+    console.log("Object human created");
+  }
+}
+
+// module.exports.printName = printName;
+// module.exports.PI = PI;
+
+// module.exports = {
+//   printName: printName,
+//   PI: PI,
+//   student: student,
+//   Human: Human,
+// };
+
+module.exports = { printName, PI, student, Human };