(3GdJQHjI hGdKbGaI GdYQHjI (B-(3GdGSdGejI aj GdTGe hGdLRjQI NdGd GdbQhf GdKdGKI GdGhdi ddgLQI HGdGSJfGO Gd eNWhW (B((3JGQjN eOjfI OeTb (B/(3GHf YSGcQ (B(499-571(3g(B/1105-1176(3e(B):s - (3GHjV ,edcI s ((3HjQhJ(B:s (3OGQ GdYde ddedGjjf,s, 1980)
Keywords: (3GdYGde GdYQHj s