Madhav, U. B., Satyanarayana, S., & Raman, K. (1980). Geophysical studies: SIDA Assisted ground water project in Noyil, Ponnani and Amaravati River basins, Tamil Nadu and Kerala Report 1:14. Ministry of agriculture and irrigation.
শিকাগো স্টাইলে সাইটেশনMadhav, U. Bindu, S. Satyanarayana, এবং K. Raman. Geophysical Studies: SIDA Assisted Ground Water Project in Noyil, Ponnani and Amaravati River Basins, Tamil Nadu and Kerala Report 1:14. Coimbatore: Ministry of agriculture and irrigation, 1980.
এমএলএ সাইটেশনMadhav, U. Bindu, et al. Geophysical Studies: SIDA Assisted Ground Water Project in Noyil, Ponnani and Amaravati River Basins, Tamil Nadu and Kerala Report 1:14. Ministry of agriculture and irrigation, 1980.
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