Kumar, C.A. y Singh, U., «Benchmarking local government performance on rural sanitation : learning from Himachal Pradesh, India». Water and Sanitation Program - South Asia, New Delhi, India, p. 5 p. : 3 fig., 2 tab., 2010.

Kumar, A., Singh, U., y Prakash, M., «Monitoring systems for incentive programs : learning from large-scale rural sanitation initiatives in India». Water and Sanitation Program, WSP, New Delhi, India, p. 16 p.; 1 box; 2 tab.; 6 fig., 2010.