Biblio

B. Hollister, Rollins, A., Kostinko, G., y 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., y 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.