(3eHGOF UMI GdMjhGf (B/ s - (3YHhO, CcQe QjTGfs ((3HZOGO (B:s (3hRGQI GdJYdje GdYGdj h GdHMK GdYdej (B- (3LGeYI GdehUd,s, 1987)
Keywords: (3GdUMI GdYGeIs; (3eQGbHI GddMhes; (3GddMhes