(3gPG GdReGf(B: (3ZQHIGdeUQi hegGfJg (B/ s - (3MGeO SdjeGfs ([S.N] : (3GdecJH GdeUQi GdMOjK , s, 1992)
Keywords: (3GdYGde GdYQHis; (3GdGMhGd GdGLJeGYjIs; (3GdgLQIs; (3GdYed hGdYeGds