Special education 216 Special Education 191 Dissertations, Academic (Ph.D) 163 Education 132 History 101 Philosophy 69 India 64 Special functions-- Analysis-- Mathematics 61 Physiology-- Specific physiological systems in animals 58 Economics 47 History and criticism 46 Special events 44 Animal ecology-- Animals of specific environments 43 Women 42 Social sciences 36 Social Sciences 34 Suicide 34 Mathematics 33 Plant Biotechnology 32 Social conditions 32 Biotechnology 31 Religion 31 Research 31 Social aspects 31 Agriculture 30 Economic development 29 Management 29 Inclusive education 28 Language 28 methods 28