Verhagen, J., Kvarnström, E., Nilsson, M., Srikantaiah, V., Ramachandran, S., and Singh, K., “The business of the honey-suckers in Bengaluru (India) : the potentials and limitations of commercial faecal sludge recycling : an explorative case..”, presented at the 2012-01-01, The Hague, The Netherlands, 2012, p. 16 p.; 10 tab.; 7 fig.

Kvarnström, E., Verhagen, J., Vishwanath, Singh, K., and Ramachandran, S., Commercial productive use of faecal sludge : videofilm presented at the Asia regional sanitation and hygiene practitioners workshop, Dhaka, Banglade.. The Hague, The Netherlands: IRC, 2012, p. video (51 min :34 sec.).

Kvarnström, E., Verhagen, J., Nilsson, M., Srikantaiah, V., Singh, K., and Ramachandran, S., “Honey-suckers: sanitation systems without pipes, eco-san at work?”. IRC, The Hague, The Netherlands, p. 41 slides, 2012.