Biblio

B. de Negri and Thomas, E., “Making sense of focus group findings : a systematic participatory analysis approach”. Academy for Educational Development, Washington, DC, USA, p. v, 160 p. : fig., tabs., 2003.

R. G. Feachem, “Excreta disposal facilities and intestinal parasitism in urban Africa : preliminary studies in Botswana, Ghana and Zambia”, Transactions of the Royal Society of Tropical Medicine and Hygiene, pp. p. 515-521, 1983.