1.  Comparative Metallogeny: “Sulphide Deposits of Archaezoic and Proterozoic Terrains of India” B.K. Nayak, 1991. (Not available)

2.  “Potential of Oil-Find in the Indo-Gangetic Plains” Gokul Ch. Naik, 1995 (Hard Bound). Price per copy: Rs. 200.00