Government of Kerala. (1997). The silent valley hydro-electric project: A techno-economic andsocio-political assessment and ecological aspects of the silent valley. Kerala Sastra Sahitya Parishad.
শিকাগো স্টাইলে সাইটেশনGovernment of Kerala. The Silent Valley Hydro-electric Project: A Techno-economic Andsocio-political Assessment and Ecological Aspects of the Silent Valley. Kochi: Kerala Sastra Sahitya Parishad, 1997.
এমএলএ সাইটেশনGovernment of Kerala. The Silent Valley Hydro-electric Project: A Techno-economic Andsocio-political Assessment and Ecological Aspects of the Silent Valley. Kerala Sastra Sahitya Parishad, 1997.
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