Gopalakrishnan, R A Study of Sivajnana Siddhiyar Parapakkam - Madras Radhakrishnan Institute For Advanced Study in Philosophy, University of Madras 1987 - 118p - Madras University Philosophical Series - 46 . Saiva Siddhanta and other Systems,Lokayata School,Buddhism,Saurantika School,Yogacara School,Madhyamika School,Vaibhasika School,Nigandavada School,Ajivaka School,Bhattacharya School,Prabhakara School,Sabda Brahmavada School,Mayavada School,Bhaskara School,Nirisvara Sankhya School,Pancaratra School,Notes Dewey Class. No.: S61 / G646