Griffiths, David; Dyer, Christopher(The National Oceanographic and Atmospheric Administration, and Aguirre International, Maryland, United States, 1996)
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)
Dahal, Ganga Ram; Adhikari, Krishna Prasad(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, USA, 2008)