Madera P., C.A.

Burbano, F., P., C.A.Madera & Valencia, J.A., 1998. Participation of women from Colombia's Pacific Coast in a sanitation programme. , p.p. 6, 7, 14, 25. Available at: https://www.ircwash.org/sites/default/files/UNICEF-1998-Waterfront11_1.pdf.