Dissertations, Academic (Ph.D) 64 Geography 46 History 41 Agriculture 36 Agricultural Extension 33 Kerala 33 Economics 30 Agricultural Entomology 29 Gazetteers 26 Social conditions 25 Rural development 24 India 22 Gazatteer 21 Education 20 Education-Secondary 20 Agricultural Economics 19 Education, Secondary 19 Plant Pathology 19 Politics and government 17 Agricultural economics 16 Agronomy 16 Public administration 16 STATISTICAL REPORTS; 16 Restraint of trade 15 Agribusiness Management 14 Social life and customs 14 Thesis (Ph.D)-Economics 14 Agricultural extension 13 DISTRICT STATISTICS; 13 Economic conditions 13