History 156 Dissertations, Academic (Ph.D) 76 History and criticism 59 General management 51 Economics 35 Agriculture 34 English fiction 33 Biochemistry 32 India 30 Organic chemistry 28 English literature 27 Dissertations, Academic (Ph.D.) 26 Leadership 26 Philosophy 26 Research methodology 26 Mathematics 25 Personnel/Human resources management--HRM-- 24 Criticism and interpretation 22 Agricultural Entomology 21 Atomic and Nuclear physics 20 English drama 20 Management 20 Literature 19 Strategic management--business policy --strategic planning 19 Agronomy 18 American fiction 18 Biochemistry-- Histochemistry-- Cytochemistry 18 Biography 18 Dissertation, academic (Ph.D.) 18 Law and legislation 18