McMahon, Glenda Chatterton, Ken Groundwater pollution by a pit latrine Groundwater pollution by a pit latrine WEDC;Disease;Technical;Diagram;International and Development Communication 2019-05-09
    https://repository.lboro.ac.uk/articles/figure/Groundwater_pollution_by_a_pit_latrine/7837496
10.17028/rd.lboro.7837496.v1