M. L. Borba, Smet, J. E. M., and Sijbesma, C.,
“Enhancing livelihoods through sanitation”, vol. no. 19. IRC, Delft, the Netherlands, p. 63 p. : 14 boxes, 3 fig., 1 matrix, 1 tab., 2007.
D. General fo DGIS,
“Results in development : report 2005-2006”. Netherlands, Ministry of Foreign Affairs, The Hague, The Netherlands, p. 160 p. : boxes, fig., tab., 2007.