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K., Ponnusamy and I.S., Azad and T., Ravishankar and M., Jayanthi and K., Ambasankar and M., Kumaran (2003) Coastal agro-ecosystem analysis using participatory rural appraisal techniques: National agricultural technology project. CIBA Bulletin No.15 . Central Institute of Brackishwater Aquaculture (CIBA), Chennai.