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This notebook includes sections of solar disinfection, moringa treatment, sand filtration, Kanchan aresenic filter, ceramic filters and other miscellaneous information.

Notebook with various page numbered sections, illustrated

Publication Details

  • Publisher: ECHO, Inc.
  • Dewey Decimal: 628.109
  • ECHO Library: 628.109 ECH
  • ECHO Asia Library: TA.001