00687nam a22001937a 4500 NUST - PNEC 20170116180801.0 150414b xxu||||| |||| 00| 0 eng d 9698380213 LIBRARY 613 SAY 2524 Saywell, Darren User based perceptions of on-plot sanitation systems in low income urban communities in Africa and Asia. Darren Saywell. - UK : Loughborough University c 1998. 139 p.: 2525 User based perceptions of on-plot sanitation systems in low income urban communities in Africa and Asia. Refuse and refuse disposal ddc BK 62961 62961 0 0 ddc 0 0 PNEC PNEC WING-A 0000-00-00 Miss Nighat Ilyas 0.00 0 613 SAY PNECLIB-021169 2015-04-14 0.00 0000-00-00 BK