Hasif M A study on occupational ambiguity of traditional fisherman of Malappuram district in line with mechanisation [M.S.W Dissertation] - Kalady Sree Sankaracharya University of Sanskrit 2008 ISBN: 0.00 Subjects--Personal Names: Fishing - MechanizationMaster of Social Work Dissertation Dewey Class. No.: SW 639.2 HAS/STU