Calbert, C.E.

Gearheart, R.A. & Calbert, C.E., 1981. Indonesia rural sanitation and manpower development project : the development of appropriate technology and the improvement of curricula for training of sanitarians, (Wash field report no. 16) Arlington, VA, USA: Water and Sanitation for Health Project (WASH). Available at: https://es.ircwash.org/sites/default/files/304-81RU-2774.pdf.