Biblio

H. Hofman, “Cost analysis of a "low cost water supply system" for rural areas”. IWACO, Bandung, Indonesia, p. 31 p.: fig., tab., 1982.

H. Hofman, “Low cost water treatment and distribution system (3 l/s) for rural water supply”. IWACO, Bandung, Indonesia, p. 19 p.: fig., tab., 1982.

H. Hofman, “Value analysis of materials used in rural water supply systems : progress report”. IWACO, Bandung, Indonesia, p. ii, 32 p.: fig., tab., 1982.