(3OjhGf GdSdWGfjf (B: s (3OQGSI h JMdjd h JMbjb h JYdjb (B/ s - (3GdYbjdj, eMeO Hf CMeOs ((3LOg (B:s (3JgGeI,s, 1983)
Keywords: (3GdTYQ GdYQHjs; (3Gdjefs