(3cja JfLh ef GdEjOR (B: (3aj (B300 (3SDGd h LhGH (B/ s - (3cQGfcg, gGfGdhQgs; (3GdjGSQj, ajUds ((3HjQhJ (B:s (3OGQ GdfVGd,s, 1997)
Keywords: (3GdEjORs; (3GdWH GdhbGFjs