Place, Frank; Kariuki, Gatarwa; Wangila, Justine; Kristjanson, Patti; Makauki, Adolf; Ndubi, Jessica(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2002)
Janssen, Marco A.; Bousquet, François; Cárdenas, Juan-Camilo; Castillo, Daniel; Worrapimphong, Kobchai(Center for the Study of Institutional Diversity, Arizona State University, Tempe, AZ, 2012)