Ferris, Shaun; Engoru, Patrick; Kaganzi, Elly(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, USA, 2008)
Klinkenberg, Eveline; Van Der Hoek, Wim; Amerasinghe, Felix P.; Jayasinghe, Gayathri; Mutuwatte, Lal; Gunawardena, Dissanayake M.(International Water Management Institute (IWMI), Colombo, Sri Lanka, 2003)
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