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Ray, D.
Singh, G.
et al.
, 1996.
[Multi-media package on] Health education and hygiene promotion
, New Delhi, India: Rajiv Gandhi National Drinking Water Mission. Available at:
https://fr.ircwash.org/sites/default/files/203.2-96HE-13754-2.pdf
.
Publié le: 31/03/1997
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Ray, D.
, 1986.
Water harvesting in India
. , p.p. 8-9: photogr. Available at:
https://fr.ircwash.org/sites/default/files/Ray-1986-Water.pdf
.
Publié le: 30/12/2004
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