(3eaJGM GdQGMI dGgd GdadGMI (B/ s - (3eMeO YjSi UGdMjf (B((3JMbjb(B)s; (3GMSGf UObi GdYeOs ([S.N] : (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 1984)
Keywords: (3JGQjNs; (3GdMVGQI GdYQHjI GdGSdGejI (B- (3GdeYGQa GdHMQjIs; (3GdJQGKs; (3GdRQGYIs; (3GdahGcgIs; (3GdfHGJs; (3GdYdhe YfO GdYQHs; (3GdadGMIs; (3GdHPhQs