(3GdSjQI GdPGJjI (B/ s - (3eMeO GdbGVi (B((3eYQH(B)s; (3YHOGddg Mhdgs; (3eGi(B, (3LhQLs ([S.N] : (3HjJ GdMceI , s, 1992)
Keywords: (3GdJQGLes; (3GdJQGLe GdPGJjIs