📕 Source : OXFAM© - Faecal Sludge Management - ( FSM ).

     **[<https://www.oxfamwash.org/en/sanitation/faecal-sludge>](<https://www.oxfamwash.org/en/sanitation/faecal-sludge>)**

https://www.oxfamwash.org/en/sanitation/faecal-sludge

Source : OXFAM©