Sustaining community-managed rural water supply systems in severe water-scarce areas in Brazil and TunisiaHela Gasmi, Marcel Kuper, Eduardo Sávio Passos Rodrigues Martins, Sylvie Morardet and Julien BurteCah. Agric., 31 (2022) 21DOI: https://doi.org/10.1051/cagri/2022019