(3deGPG fbJd hdeGPG fSQb ? (B:s (3bVGjG LfGFjI dYH GdJMdjd GdfaSj (B: (3OhQg aj Md eYejGJgG hJcjja GdbVGI dCMcGege ajgG (B/s - (3QaYJ, eMeOs ((3HjQhJ (B:s (3OGQ GdcJGH GdYQHj,s, 1983)
Keywords: (3Yde GdfaS GdLfGFjs; (3GdJMdjd GdfaSjs; (3GdLQjeI hGdeLQehfs