Education 180 History 129 Philosophy 60 Economics 59 Literature 42 Tourism 38 Management 36 Film adaptations 32 Mathematics 32 Adaptation 30 Congresses 30 Social aspects 30 History and criticism 29 Social Sciences 29 Teaching 28 Algebraic number theory-- Invariant theory-- P-adic numbers-- Quadratic forms-- Algebraic function 27 Research 27 മലയാളം; മലയാളം നോവല്‍ 27 Arts 25 Climatic changes 25 Psychology 25 Climate Change Adaptation 24 Islam 24 India 23 Novel 23 Biography 22 Leadership 22 Learning 21 Sociology 21 Educational technology 20