Biblio

D. E. G. T. Z. - Eschborn and IWA -London, GB, International Water Association, “Ecosan - closing the loop : proceedings of the 2nd international symposium, 7th - 11th April 2003, Lubeck, Germany”. Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ), Eschborn, Germany, p. xiv, 1004 p. : fig., tab., 2004.

D. E. G. T. Z. - Eschborn and PK, N. - W. Frontier P., “Manual for the implementation of the strategic investment plan : the integrated concept”. Pakistan, NW Frontier Province, Public Health Engineering Department, Peshawar, Pakistan, 1991.