Pakistan: study of non-state providers of basic services * Batley, Richard; Hussein, Maliha H.; Khan, Abdul Rashid; Mumtaz, Zubia; Palmer, Natasha; Sansom, Kevin; University of Birmingham, International Development Department; University of Birmingham, School of Public Policy; London School of Hygiene and Tropical Medicine (LSHTM); Water, Engineering and Development Centre (WEDC); University of Sussex, Centre for International Education