Famines 28 History 16 Economics 9 Poverty 9 Social Sciences 9 Amines 8 Famine 8 Droughts 6 Food supply 6 Enzymes 5 India 5 Organic compounds 5 Politics and government 5 മലയാളം; മലയാളം നോവല്‍ 5 Chemistry 4 Deserts 4 Dissertations, Academic (Ph.D) 4 Economic policy 4 Ethics 4 Literature 4 Population 4 Social Problems 4 Social conditions 4 Thesis (Ph.D)-Chemistry 4 World War, 1939-1945 4 Amino acids 3 Biochemistry 3 Desertification 3 Economic conditions 3 English literature 3