IRC International Water and Sanitation Centre, The Hague, NL and National Environmental Engineering Research Institute -Nagpur, IN, NEERI,
“National workshop on slow sand filtration, health education, community participation and information support : NEERI, Nagpur, June 29 - July 1, 1983”. National Environmental Engineering Research Institute, NEERI, Nagpur, India, p. 10 papers, 1983.