-
351
A monitoring and evaluation manual for low-cost sanitation programs in India.
Publicado em 1984Livro -
352
-
353
-
354
-
355
Developing and using audio-visual materials in water supply and sanitation programs
Publicado em 1984Livro -
356
-
357
-
358
Methods for gathering socio-cultural data for water supply and sanitation projects.
Publicado em 1983Livro -
359
-
360


