diff --git a/Sources/Ordering/SelectionSort.swift b/Sources/Ordering/SelectionSort.swift
index 4888979..df812cd 100644
--- a/Sources/Ordering/SelectionSort.swift
+++ b/Sources/Ordering/SelectionSort.swift
@@ -5,3 +5,26 @@
 //  Created by Brayan Martinez on 28/6/24.
 //
 
+public func selectionSort(data: inout [Int]) {
+    for i in 0..<(data.count-1) {
+        var min_index = i
+        for j in i + 1..<(data.count) {
+            if (data[min_index] > data[j]) {
+                min_index = j
+            }
+        }
+        if (min_index != i) {
+            swap(first: i, second: min_index, data: &data)
+        }
+    }
+}
+
+private func swap(first: Int, second: Int, data: inout [Int]) {
+    var value1 = data[first]
+    var value2 = data[second]
+    let temp = value1
+    value1 = value2
+    value2 = temp
+    data[first] = value1
+    data[second] = value2
+}
diff --git a/Tests/OrderingTest/SelectionSortTest.swift b/Tests/OrderingTest/SelectionSortTest.swift
new file mode 100644
index 0000000..98c49c4
--- /dev/null
+++ b/Tests/OrderingTest/SelectionSortTest.swift
@@ -0,0 +1,30 @@
+//
+//  SelectionSortTest.swift
+//  
+//
+//  Created by Brayan Martinez on 30/6/24.
+//
+
+import Testing
+@testable import Util
+@testable import Ordering
+
+@Test func selectionSortTest() async throws {
+    var data: [Int] = getData()
+
+    print("-- SelectionSort -- \n\n")
+
+    //before
+    print("Before Sorting: \n")
+    printData(data: &data)
+
+    //sort
+    print("\n")
+    selectionSort(data: &data)
+
+    //after
+    print("After Sorting: \n")
+    printData(data: &data)
+
+    print("Test Passed!")
+}