(3bUI KhQI (B23 (3jhdjh(B:(3TghO KhQI jhdjh(B, (3L(B4 / s - (3GMeO MeQhTs ([S.N] : (3ecJHI eOHhdi , s, 1984)
Keywords: (3GdYUQ GdMOjKs; (3eUQs; (3JGQjNs; (3KhQI (B23 (3jhdjh (B1952s; (3LeGd YHOGdfGUQs