1. Wastewater Irrigation and Health—Assessing and Mitigating Risk in Low-income Countries;Drechsel,2010
2. Health aspects of nightsoil and sludge use in agriculture and aquaculture-Part I: Existing practices and beliefs in the utilisation of human excreta;Cross,1985
3. Possibilities and Impossibilities of the use of Human Excreta as Fertiliser in Agriculture in Sub-Saharan Africa;Timmer,1998
4. On-site sanitation: when the pits are full-planning for resource protection in faecal sludge management;Strauss,2000
5. National assessment on wastewater use in agriculture and an emerging typology: Vietnam case study;Raschid-Sally,2004