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• From WASH clubs to total sanitation - School sanitation story from Pakistan
  Stephan Kraemer
  7 KB (1,132 words) - 23:37, 20 October 2016
• Primary water
  ...nica's Book of the Year wrote the following on ''The "New Water" Theory of Stephan Riess'':<ref>"The Problem of Water" in 1957 Brittanica Book of the Year (A |quote = Stephan Riess of California formulated a theory that "new water" which never existe
  68 KB (10,429 words) - 01:27, 21 February 2017