Dissertations, Academic (Ph.D) 538 Dissertations, Academic(Ph.D) 153 Dissertations, Academic (Ph.D.) 93 Dissertation, academic (Ph.D.) 69 Thesis (Ph.D)-Education 49 Dissertation, Academic (Ph.D.) 40 Thesis (Ph.D)-Physics 37 Dissertation, Academic (Ph.D) 36 Thesis (Ph.D)-Commerce 36 Thesis (Ph.D)-Chemistry 32 Thesis (Ph.D)-Economics 28 Dissertations, Academic(Ph. D) 27 Thesis (Ph.D)-Malayalam literature 25 History 24 Economics 22 Thesis (Ph.D)-Biochemistry 22 Thesis (Ph.D)-Hindi literature 22 Thesis (Ph.D)-Mathematics 21 Thesis (Ph.D)-Botany 20 Dissertations, Academic (Ph D) 18 Thesis (Ph.D)-Zoology 17 Thesis(Ph.D)-Education 15 Nanostructured materials 14 Thesis(Ph.D)-Chemistry 14 Hindi fiction-History and criticism 13 Medicinal plants 13 Thesis (Ph.D)-Computer Science 13 Malayalam fiction-History and criticism 12 Short stories, Hindi-History and criticism 12 Thesis(Ph.D)-Physics 12