(3LQGFe GdehXa GdYGe GdJj JbY efg Ch Ydjg (B:s (3JbY efg GdQThI(B-(3GdGNJdGS (B/s - (3YGHOjf, eMeO CMeO s ((3GdEScfOQjI, eUQ (B:s (3OGQ GdeWHhYGJ GdLGeYjI, s, 1985)
Keywords: (3GdbGfhf GdEOGQj s -- (3eUQs; (3GdehXahfs -- (3hVY bGfhfj, bhGfjf, EdN(B.s -- (3eUQs