(3GdSjGSI GdeGFjI dGSQGFjd (B/ s - (3GhQi (B, (3OjaRs; (3QjJTGQOShf, Lhf s; (3eGcS (B,(3GfWhfs ([(3HjQhJ (B: s (3eDSSI GdOQGSGJ GdadSWjfjI , s, 1986)
Keywords: (3GdfRGY GdYQHi GdGSQGFjdis; (3GSQGFjds; (3adSWjfs