Krishnasamy, S.; Amerasinghe, Felix P.; Sakthivadivel, R.; Ravi, G.; Tewari, S. C.; Van Der Hoek, Wim(International Water Management Institute, Colombo, Sri Lanka, 2003)
McCartney, Matthew; Rebelo, Lisa-Marie; Sellamuttu, Sonali Senaratna; de Silva, Sanjiv(International Water Management Institute (IWMI), Colombo, Sri Lanka, 2010)
Cárdenas, Juan-Camilo; Ostrom, Elinor(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2004)