Swallow, Brent M.; Meinzen-Dick, Ruth; Noordwijk, Meine van(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2005)
Kling, Rob; Spector, Lisa; McKim, Geoff(Center for Social Informatics, School of Library and Information Science, Indiana University, Bloomington, IN, 2002)