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3. The Diffusion of Process Innovations: A Selective Review
4. Bhatnagar, M. 2017. “INTACH Pilot Project Reduces Assi River Pollution in Varanasi by 70% in Two Months, at Least Cost, without Any Structures.” SANDRP, August 22. https://sandrp.in/2017/08/22/intach-pilot-project-reduces-assi-river-pollution-in-varanasi-by-70-in-two-months-at-least-cost-without-any-structures/