Journal Article
                        
                        Perkins, Margaret, Ellen  Brazier, Ellen  Themmen, Brahima  Bassane, Djeneba  Diallo, Angeline  Mutunga, Tuntufye  Mwakajonga, and Olipa  Ngobola.  
"Out-of-pocket costs for facility-based maternity care in three African countries." Health policy and planning 24, no. 4 (2009): 289-300.