diff --git a/README.md b/README.md
index d77bd7a..cc7865f 100644
--- a/README.md
+++ b/README.md
@@ -39,3 +39,9 @@ This tutorial assumes you have access to the [Google Cloud Platform](https://clo
 * [Deploying the DNS Cluster Add-on](docs/12-dns-addon.md)
 * [Smoke Test](docs/13-smoke-test.md)
 * [Cleaning Up](docs/14-cleanup.md)
+
+
+## References
+
+* [Kubernetes The Hard Way](https://github.com/kelseyhightower/kubernetes-the-hard-way)
+* [Kubernetes The Hard Way - Bare Metal](https://github.com/Praqma/LearnKubernetes/blob/master/kamran/Kubernetes-The-Hard-Way-on-BareMetal.md)