Narayana Menon, Vallathol-Criticism and interpretation Kumaranasan-Criticism and interpretation 4 Parameswara Iyer, Ulloor S-Criticism and interpretation 4 Malayalam poetry-History and criticism 2 Dissertations, Academic (Ph.D) 1 Kumaran Asan, N-Criticism and interpretation 1 Parameswara Iyer, Ulloor-Criticism and interpretation 1 Thesis (Ph.D)-Malayalam literature 1