Hardaker , D. “COINS OF ANTIQUITY: THE ROLE OF PUNCH-MARKED COINS IN THE TRADE AND DEVELOPMENT OF ANCIENT INDIA”. SADI Journal of Interdisciplinary Research (SJIR), vol. 9, no. 3, Aug. 2023, pp. 1-8, https://sadijournals.org/index.php/SJIR/article/view/250.