Ratna Reddy, V., Jaya Kumar, N., Venkataswamy, M., and Snehalatha, M., “Cost of provision: how good are unconditional allocations?: a study of water services delivery in rural Andhra Pradesh”, WASHCost India-CESS working papers, vol. 15. WASHCost team, Hyderabad, IN, Hyderabad, India, p. 22 p.; 3 tab.; 6 fig., 2011.