History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s5.12

Agrawal, D.P., Margabandhu, C. and Shekar, N.C. : 1976, “Ancient Copper Workings: Some New C¹⁴ Dates”, *IJHS*, Vol. 11, (2), 1976, pp. 133-136.