(3aJi GdebdGY (B: s (3bUU h McGjGJ ddCWaGd (B/ s - (3LHQ, CMeOs; (3MdaGhj, YHO GdfGUQs ((3YeGf (B:s [(3O(B.(3f(B](3,s, 1993)
Keywords: (3GdbUU GdYQHjIs; (3CWaGd eQMdI eJhSWI (B(6-9 (3SfhGJ(B)s