Nusa Tenggara Timur (Province). Department of Health -ID

WHO. Regional Office for South-East Asia -New Delhi, IN, SEARO & ID, N.Tenggara T., 1982. Development of designs and construction of domestic rain-water collection and storage systems for drinking water use, New Delhi, India: World Health Organization South-East Asia Regional Office. Available at: https://es.ircwash.org/sites/default/files/R822-1530.pdf.