(3GdaSGO hGdSdWI (B:s (3CQcjhdhLjG GdefTCI GdeROhLI (B: (3GdJeaUd GdhbGFYj ddSdWI aj GdYUhQ GdhSWi (B/ s - (3GdMSjf, bUj s ((3HjQhJ (B:s (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY, s, 1997)
(3HHdjhLQGajI (B: (3U(B. 220-223.s
Keywords: (3Yde GdGLJeGY GdSjGSj s; (3GdaSGO GdSjGSj s; (3GdaSGO GdGLJeGYj s