MIR, Hafizullah; TAHERDOOST, Hamed. Financial Feasibility of Basic Rainwater Harvesting Systems in Small Residential Communities in Germany: A Secondary Data and Sensitivity Analysis. British Journal of Business Sciences, [S. l.], v. 2, n. 1, p. 90–97, 2026. DOI: 10.65687/bjbs.v2i1.6. Disponível em: https://metaopensciences.com/index.php/bjbs/article/view/29. Acesso em: 13 jun. 2026.