Mills, Anne (2012). "Health policy and systems research: defining the terrain; identifying the methods". Health Policy and Planning. 27 (1): 1–7. doi:10.1093/heapol/czr006. PMID21324972.
Mills, Anne (2012). "Health policy and systems research: defining the terrain; identifying the methods". Health Policy and Planning. 27 (1): 1–7. doi:10.1093/heapol/czr006. PMID21324972.