(3HJQhd heYGde GdfXGe GdeGdj aj GdchjJ (B/s - (3Rjf GdYGHOjf fGUQs ((3GdchjJ (B:s (3eWGHY UhJ GdNdjL(B,s, 1977)
. 182-179(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeUGOQ GdWHjYjI GdLhajIs -- (3GdchjJs; (3HJQhds; (3faWs; (3GfXeI eGdjIs