Achuthan Unny Chathanathu Gaveshanam: prabandharacahanyute tattvangal/ by Achuthan Unny Chathanathu - 5th. - Sukapuram: Vallathol Vidyapeedham, 2015 - 148p. ISBN: 9789383570202 Subjects--Topical Terms: Research Methodology Dewey Class. No.: M 001.42 / ACH/G