diff --git a/_text/15-service-locator.md b/_text/15-service-locator.md
index 6116446..9a6aafb 100644
--- a/_text/15-service-locator.md
+++ b/_text/15-service-locator.md
@@ -31,4 +31,9 @@ Unity has implemented this pattern in the form of the GetComponent() method.
 - **Facade.** You can use Facade in combination with Service Locator.
 
 
-## [Back](../)
\ No newline at end of file
+Here is an example implementation of the Service Locator pattern as a Unity UPM package:
+
+https://github.com/PixelWizards/com.pixelwizards.servicelocator 
+
+
+## [Back](../)
diff --git a/_text/18-object-pool.md b/_text/18-object-pool.md
index bdc25c8..b6280e8 100644
--- a/_text/18-object-pool.md
+++ b/_text/18-object-pool.md
@@ -28,5 +28,9 @@ This pattern is so popular Unity has implemented their own version of it called
 
 - **Prototype.**
 
+PixelWizards has published an example implementation of Object Pooling as a UPM package that can be used in your own projects:
 
-## [Back](../)
\ No newline at end of file
+https://github.com/PixelWizards/com.pixelwizards.objectpool
+
+
+## [Back](../)
diff --git a/_text/5-singleton.md b/_text/5-singleton.md
index 245f0d5..603a214 100644
--- a/_text/5-singleton.md
+++ b/_text/5-singleton.md
@@ -35,4 +35,8 @@ You tend to use the Singleton pattern because you want an easy access to that sc
 - **One Singleton.** Have just one Singleton class and all managers that used to be Singletons are collected in this class. If you need the SaveGame object, you type GameController.Instance.getSaveGameManager(). 
 
 
-## [Back](../) 
\ No newline at end of file
+# Unity UPM Package
+You can find an example Singleton implementation as a Unity UPM package here:
+https://github.com/PixelWizards/com.pixelwizards.singleton
+
+## [Back](../)