(3GdGYLGR GdYdei ai GdGSdGe(B: (3GdSfI GdfHhjI (B/ s - (3eMeO cGed YHOGdUeOs ([S.N] : (3GdOGQ GdeUQjI GddHfGfjI , s, 1993)
Keywords: (3GdGSdGes; (3GdSjQI GdfHhjIs; (3GdMOjKs; (3GdSGYIs