The Hindu Business Line — 13th January 2018
L’Italia in evidenza a Calcutta
Italia Oggi, 2 settembre 2020
The Hindu Business Line — 13th January 2018
Italia Oggi, 2 settembre 2020
Foundry-Planet, 27 April 2020
miningweekly.com — 22nd March 2019
UNI (United News Agency of India) on 20th March, 2019