1. Callaghan, T. V., et al. "The effect of water-absorbing synthetic polymers on the stomatal conductance, growth and survival of transplanted Eucalyptus microtheca seedlings in the Sudan." Journal of Applied Ecology (1989): 663-672.
¹°Èí¼ö ÁßÇÕüÀÎ polyacrylamide¿Í polyvinylalcoholÀ» 0..