R. Shaw and Smith, M., “Desalination”, Waterlines, an international journal of water, sanitation and waste, vol. no. 40, pp. p. 15-18: 6 fig., 1994.
1993
A. Scharl and Harrs, K., “Solar distillation”, vol. no. W11e. German Appropriate Technology Exchange (GATE) /Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ), Eschborn, Germany, p. 8 p. : 2 fig., 1993.