(3JWhQ GdacQ GdSjGSi ai eUQ GdMOjKI (B/ s - (3GMeO YHOGdQMje eUWais ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1973)
Keywords: (3GdYUQ GdMOjKs; (3eUQs; (3JGQjNs; (3GdGTJQGcjIs; (3GdOSJhQs; (3GddjHQGdjIs; (3GdGNhGf GdeSdehfs