I. N. Sulabh Int Delhi,
“Schools as community health promoters”, vol. unit 1. Sulabh International, New Delhi, India, p. ii, 20 p., 1995.
Socio-Economic Units, Kerala -Trivandrum, IN and Trivandrum, I. N. I. U. P. H. E. Sou,
“Strategies and approaches for community-based initiatives : a source book on environmental hygiene promotion : proceedings of the National Conference on Environmental Hygiene and Promotional Initiatives”. Kerala Water Authority, Socio-Economic Units, Trivandrum, India, p. 169 p. : fig., tab., 1995.
World Bank -Washington, DC, US,
“World Bank participation sourcebook”, vol. no. 19. World Bank Environment Department, Washington, DC, USA, p. iii, 247 p. : boxes, fig., 1995.