Sá, E.N. de C. and Rabello, M.C.G. (1988) “ Administration by agreement a management tool of health policies: an analysis of agreements made by the Health Secretariat of S. Paulo State, Brazil - 1987 ”, Revista de Saúde Pública, 22(2), pp. 150–158. doi:10.1590/S0034-89101988000200011.