Perea-Moreno, L., Salas-Ruiz, A. and Arana-Giralt, J. (2018) “Great challenges and the application of participatory tools in the planning of the informal city. The case of Makeni, Sierra Leone”., Urbano, 21(37), pp. 18–31. doi:10.22320/07183607.2018.21.37.02.