Quisumbing, Agnes R.; McNiven, Scott; Godquin, Marie(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2008)
Baland, Jean-Marie; Platteau, Jean-Philippe(Faculte des Sciences economiques et sociales, Facultes Universitaire Notre-Dame de la Paix, Namur, Belgium, 1994)