Avoiding the Use of Exhausted Drinking Water Filters: A Filter-Clock Based on Rusting Iron
Journal article published in 2018 by
Arnaud Ndé-Tchoupé,
Ndé Tchoupé Ai,
Mesia Lufingo,
Rui Hu,
Ntwampe Sko,
Willis Gwenzi,
Seteno Ntwampe 
,
Chicgoua Noubactep ,
...,
Karoli Njau
,
Chicgoua Noubactep ,
...,
Karoli Njau
This paper is made freely available by the publisher.
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