History 163 Agriculture 93 Land use 86 Land tenure 77 Politics and government 70 Economics 66 Land reform 66 Religion 66 India 64 Environmental economics-- Land economics 63 Rural development 63 Sri Lanka 54 Land economics 52 Tribes 49 Hinduism 46 Education 44 Land reforms 43 Population 41 Scheduled tribes 41 Communication 39 Urbanization 38 Finance 37 Industries 37 Non-governmental organizations 37 Wildlife management 37 Language and literature 36 Transportation 36 Untouchables 36 Tourist trade 35 Land 33