Pathak, T.K. . Encyclopaedia of education: modern teaching techniques / by T.K. Pathak and S.N. Mudgal. - New Delhi : Relevant books international , 2014 - 5 vols : ISBN: 978-81-924923-1-5 Subjects--Topical Terms: Education- Encyclopaedia Dewey Class. No.: T:3k / Q4.5