(3GdHSI Ydi eTLH GdJQGK (B.s - (3GdTdGHj , SGde s ((3O (B. (3e (B:s (3GdOGQ GdLeGgjQjI ddfTQ hGdJhRjY ,s, 1990)
Keywords: (3GdYGOGJ hGdJbGdjO (B.s