1. https://www.cnn.com/SPECIALS/cnn.heroes/archive07/
2. https://www.thenewsminute.com/article/padmashri-s-ramakrishnan-man-who-helps-hundreds-people-disabilities-tn-116829
3. https://www.ashoka.org/en-ca/fellow/s-sankara-raman
4. https://en.wikipedia.org/wiki/Dr._Ambedkar_National_Award
5. https://earlyintervention.amarseva.org/