Gallaher, Courtney M., Antoinette M. G. A. WinklerPrins, Mary Njenga, and Nancy K. Karanja. 2015. “Creating Space: Sack Gardening As a Livelihood Strategy in the Kibera Slums of Nairobi, Kenya”. Journal of Agriculture, Food Systems, and Community Development 5 (2). Ithaca, NY, USA:155-73. https://doi.org/10.5304/jafscd.2015.052.006.