diff --git a/README.md b/README.md
index 592c8ee..6702c92 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ Exploring random forest algorithm during residency Meise.
 
 In this repository experiments with the random forest algorithm: a commented implementation to develop an understanding of its workings and a visualizer of the generated models.
 
+The implementation was taken from [Machine Learning Mastery](https://machinelearningmastery.com/implement-random-forest-scratch-python/)
+
 
 ## Files