(3OjhGf LeHd(B: (3TYQ GdMH GdYPQi (B/ s - (3MSjf fUGQs ([S.N] : (3ecJHI eUQ , s, 1979)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdTYQ GdZRdis; (3GdeLehYGJs