Biblio

K. Danert, Armstrong, T., Adekile, D., Duffau, B., Ouedraogo, I., y Kwei, C., «Code of practice for cost effective boreholes». Rural Water Supply Network, RWSN, St. Gallen, Switzerland, p. 36 p.; fig.; tab.; photographs, 2010.

D. Adekile y Ball, P., «Training local technicians in borehole drilling», Waterlines, an international journal of water, sanitation and waste, pp. p. 23-25 : 4 photogr., 2 tab., 2006.