Biblio

B. Hollister, Rollins, A., Kostinko, G., and Yacoob, M., “Creating institutional capability for community-based environmental health programs”, vol. no. 434. Environmental Health Project (EHP), Arlington, VA, USA, p. xiv, 33 p., 1994.

A. Rollins, Yacoob, M., and Owoyele, M., “Hygiene education workshop in water supply and sanitation, Ilorin, Nigeria”, vol. no. 278. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vi, 52 p., 1989.