P. Ojiaka y Anom, S.,
«Income generating activities for hygiene promotions», in
Towards the millennium development goals - actions for water and environmental sanitation : proceedings of the 29th WEDC conference, Abuja, Nigeria, 2003, Loughborough, UK, 2003, pp. P. 51-54 : 1 fig.
P. K. Orangi Pil Karachi,
«Orangi pilot project : institutions and programs : 96th quarterly report, Oct., Nov., Dec., 2003». Orangi Pilot Project, Orangi Town, Karachi, Pakistan, p. 119 p. : tab. + 16 p. photogr., 2003.