(3GdTeS (B: (3bUJgG ef GdHOGjI Gdi GdfgGjI (B/ s - (3LGeh, LhQLs; (3GMeO MeGOs; (3YHOGdMejO SeGMI s ((3GdbGgQI (B: s (3OGQ fgVI eUQ ddWHY hGdfTQ ,s, 1956)
Keywords: (3GdfLhes; (3Gdadc GdhUais; (3GdWGbI GdTeSjIs; (3GdchGcHs; (3GdTeSs; (3GdeLehYI GdTeSjIs