Devida Vengedasalam Principles of economics / Devida Vengedasalam, Karunagaran Madhavan. - 3rd ed.. - Shah Alam Oxford University Press 2013. - 388p col. il. 25cm Include index ISBN: 9789834708566 Subjects--Topical Terms: Economics--Problems, exercises, etc. Dewey Class. No.: 330.076 DEV 2013