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1. Nationwide rural water and sanitation programme (RUWATSAN): general policy guidelines (1987)
   Nigeria, Directorate of Food, Roads and Rural Infrastructures (DFRRI); DFRRI Series 9
2. Nationwide rural water and sanitation programme (RUWATSAN): operational manual RUWATSAN: tripod drilling rig model 80 (1987)
   Nigeria, Directorate of Food, Roads and Rural Infrastructures (DFRRI); DFRRI Series 4
3. Nationwide rural water and sanitation programme (RUWATSAN): project implementation procedures and specifications (1987)
   Nigeria, Directorate of Food, Roads and Rural Infrastructures (DFRRI); DFRRI Series 10