Agricultural develop 21 Agricultural economics 19 Kerala-Census (1981) 8 Agricultural ecnomics 2 Management 2 Plant physiology 2 Amino acid-analysis 1 Angiosperms 1 British industry 1 Bruchids- Ecology 1 Census 1 Cinnamon 1 Clove Pimento 1 Co operation 1 Co-operative management 1 Co-operativeexport 1 Conflict-Under colonial rule-South India 1 Crops 1 Demographic statistics 1 Developmental biology 1 Education 1 Ernakulam (Kerala)-Census (1981) 1 Financial economics 1 Flowering plants 1 Homescience 1 Idukki (Kerala)-Census (1981) 1 Input and out put statement 1 Irish literature 1 Irrigation 1 Kasaragod (Kerala)-Census (1981) 1