(3GdTcd hGdNWGH eONd dJMdjd XGgQGJi (B/ s - (3eMeO GdeGcQis ([S.N] : (3GdeQcR GdKbGai GdYQHi , s, 1991)
Keywords: (3GdTYQ GdYQHi (B- (3JGQjN hfbOs