(3GdQhJGQi ai baU GdGJgGe (B/ s - (3GHhGSdGe GMeO YHOGddgs ([S.N] : (3HjJ GdMceI , s, 1987)
Keywords: (3GdKbGaI GdGSdGejIs; (3GdGSdGe hGdePGgH GdGdMGOjIs