(3GdZQjRI(B: (3bUI GfSGfjI QGFYI (B/ s - (3HjQhThf, GQfSJs ([S.N] : (3GdecJHI GdKbGajI , s, 1987)
Keywords: (3GdbUU GdGfLdjRjI GdeJQLeIs; (3GdGOH GdGfLdjRis