(3GdeYGOdGJ GdJaGVdjI GdGYJjGOjI(B/s (3JGja aQjO HQhjQ, Lhf e (B. (3fhgjd ; JQLeI NGdO GMeO eMeO Ydj, UHGM aGVd Ydjs - (3HQhjQ, aQjOs; (3GMeO eMeO Ydj s; (3UHGM aGVd YHO s ((3HZOGO (B[(3GdYQGb(B]: s (3OGQ GdMceI ddWHGYIhGdfTQ,s, 1990)