Biblio

H. E. Perrett, «Involving women in sanitation projects», vol. no. 3. World Bank, Washington, DC, USA, p. iii, 39 p.: fig., tab., 1985.

H. E. Perrett, «Planification de la communication (information, motivation et education) pour aider a la realisation de programmes d'assainissement», vol. no. 2. World Bank, Washington, DC, USA, p. 33 p.: ann., 1985.

H. E. Perrett, «Monitoring and evaluation of communication support activities in low-cost sanitation projects», vol. no. 11. World Bank, Washington, DC, USA, p. 26 p., 1984.

H. E. Perrett, «Planning of communication support (information, motivation and education) in sanitation projects and programs», vol. no. 2. World Bank, Washington, DC, USA, p. i, 27 p., 1983.