Biblio

D. A. Still y Louton, B., Piloting and testing the pour flush latrine technology for its applicability in South Africa, vol. 1887/1/12. Gezina: Water Research Commission, WRC, 2012, p. xii, 100 p.; ill.; tab.; fig.

P. A. Deverill y Still, D. A., «Building school VIPs : guidelines for the design and construction of ventilated improved pit toilets and associated facilities for schools». National Sanitation Co-ordination Office (NaSCO), Pretoria, South Africa, p. 37 p. : ill., tech. drwngs., 1998.

D. A. Still, Salisbury, R. H., Foxon, K. M., Buckley, C. A., y Bhagwan, J. N., «The challenges of dealing with full VIP latrines». S.n., S.l., p. 12 p.; 7 fig.; 2 tab.