(3OhQI Mhd GdYGde aj KeGfjf jheG (B/ s - (3ajQf, Lhds; (3YcGQj, fGUQs ((3HjQhJ (B:s (3OGQ GdTeGd ddfTQ,s, 1983)
Keywords: (3COH GdCWaGds; (3GdbUUs