diff --git a/README.md b/README.md
index 87dfc05..3f3cf7d 100644
--- a/README.md
+++ b/README.md
@@ -114,7 +114,13 @@ class NewsRepository extends BaseRepository
 {
     public function entity()
     {
+        // Whatever choose one your style.
+
         return new News();
+        // or
+        return 'App\Models\News';
+        // or
+        return News::class;
     }
 }
 ```
diff --git a/src/Eloquent/RepositoryAbstract.php b/src/Eloquent/RepositoryAbstract.php
index 03c69b3..274e68b 100644
--- a/src/Eloquent/RepositoryAbstract.php
+++ b/src/Eloquent/RepositoryAbstract.php
@@ -2,7 +2,6 @@
 
 namespace Fluent\Repository\Eloquent;
 
-use CodeIgniter\Model;
 use Fluent\Repository\Scopes\Scopes;
 use Fluent\Repository\Contracts\ScopesInterface;
 use Fluent\Repository\Contracts\CriteriaInterface;
@@ -96,17 +95,21 @@ public function __get($name)
      * Resolve entity.
      *
      * @return \CodeIgniter\Model
-     * 
+     *
      * @throws RepositoryException
      */
     protected function resolveEntity()
     {
-        if (! $this->entity() instanceof Model) {
-            throw new RepositoryException(
-                "Class {$this->entity()} must be an instance of CodeIgniter\\Model"
-            );
+        $entity = $this->entity();
+
+        if (is_string($entity)) {
+            return new $entity();
+        } elseif ($entity instanceof \CodeIgniter\Model) {
+            return $entity;
         }
 
-        return $this->entity();
+        throw new RepositoryException(
+            "Class {$entity} must be an instance of CodeIgniter\\Model"
+        );
     }
 }
diff --git a/src/Scopes/ScopeAbstract.php b/src/Scopes/ScopeAbstract.php
index 387e910..fd900d8 100644
--- a/src/Scopes/ScopeAbstract.php
+++ b/src/Scopes/ScopeAbstract.php
@@ -4,8 +4,19 @@
 
 abstract class ScopeAbstract
 {
+    /**
+     * In your repository define which fields can be used to scope your queries.
+     *
+     * @param \CodeIgniter\Database\BaseBuilder $builder
+     * @return \CodeIgniter\Database\BaseBuilder $builder
+     */
     abstract public function scope($builder, $value, $scope);
 
+    /**
+     * Override mappings key.
+     *
+     * @return array
+     */
     public function mappings()
     {
         return [];