(3GdhLjR aj PcQ GdeLGR h GdeLjR (B/ s - (3GdSdaj, CHh WGgQ UOQGdOjfs; (3GdHbGYj, eMeO NjQs ((3HjQhJ (B:s (3OGQ GdYQH GdGSdGej,s, 1991)
Keywords: (3Ydhe GdMOjKs; (3eSGfO GdMOjKs; (3OaY GdeWGYf Yf GdMOjKs