Smith, M.,
«Groundwater dams»,
Waterlines, an international journal of water, sanitation and waste, vol. no. 24, pp. p. 15-18: fig., 1990.
Goodrich, J.A., Bouwer, H., David, R., y Pyne, G.,
«Recharging ground water»,
Water resources journal, pp. p. 7-9: fig., 1990.
Nissen-Petersen, E. y Lee, M.,
«Sub-surface and sand-storage dams», vol. manual no. 5. ASAL Rainwater Harvesting, Nairobi, Kenya, p. iii, 43 p.: fig., 1990.