diff --git a/src/roadmaps/blockchain/content/110-building-for-scale/102-zero-knowledge-rollups-and-zero-knowledge-proof.md b/src/roadmaps/blockchain/content/110-building-for-scale/102-zero-knowledge-rollups-and-zero-knowledge-proof.md
index c7837acc9..0e9fedcb0 100644
--- a/src/roadmaps/blockchain/content/110-building-for-scale/102-zero-knowledge-rollups-and-zero-knowledge-proof.md
+++ b/src/roadmaps/blockchain/content/110-building-for-scale/102-zero-knowledge-rollups-and-zero-knowledge-proof.md
@@ -5,3 +5,5 @@ Zero-knowledge rollups (ZK-rollups) are layer 2 scaling solutions that increase
 Visit the following resources to learn more:
 
 - [Zero-Knowledge Rollups - Ethereum](https://ethereum.org/en/developers/docs/scaling/zk-rollups)
+- [Why and How zk-SNARK Works](https://medium.com/@imolfar/why-and-how-zk-snark-works-1-introduction-the-medium-of-a-proof-d946e931160)
+- [Introduction to zk-SNARKs](https://vitalik.ca/general/2021/01/26/snarks.html)