(3GdeJhSW hGdYGde GdeJhSWi (B/ s - (3HQhOjd , aQfGfs; (3eQhGf GHi SeQG (B((3eJQLe(B)s ([S.N] : (3OGQ GdefJNH GdYQHi ddOQGSGJ hGdfTQ hGdJhRjY , s, 1993)
Keywords: (3JGQjNs; (3GdGMhGd GdGLJeGYjIs; (3GdGMhGd GdSjGSjIs; (3MVGQI GdYUhQ GdhSWis; (3GSHGfjGs; (3GSQI gGHSHQLs