(3GdGJLGgGJ GdGOHjI GdMOjKI (B/ s - (3LhQL WQGHjTi (B((3eJQLe(B)s; (3GdHjQjS Q(B.(3es ([S.N] : (3efThQGJ YhjOGf , s, 1983)
Keywords: (3GdGOHs; (3JGQjN hfbOs