(3bUU GdGeKGd GdYGejI (B- ( (3cJGH CeKGd hbUU , hYXGJ hYHQ , hacGgI COH (B) - (3GdLRA GdChds - (3RdRdI(B. (3eMeO UGObs ((3OGQGdLjds (3HjQhJs, 1986)
Keywords: (3GdGOH GdTYHjs; (3GdGeKGd GdTYHjIs