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)
Nielsen, Melanie; Hoogvorst, Anneke; Konradsen, Flemming; Mudasser, Muhammad; Van Der Hoek, Wim(International Water Management Institute, Colombo, Sri Lanka, 2001)
Swallow, Brent M.; Wangila, Justine; Mulatu, Woudyalew; Okello, Onyango; McCarthy, Nancy(CGIAR System-wide Program on Property Rights and Collective Action, International Food Policy Research Institute, Washington, DC, 2000)
Amare, Yared; Adal, Yigremew; Tolossa, Degafa; Castro, Alfonso Peter; Little, Peter D.(BASIS Greater Horn of Africa Program and the Institute for Development Research, Addis Ababa University, Ethiopia, 2000)
Woyessa, Y. E.; Pretorius, E.; van Heerden, Pieter; Hensley, M.; van Rensburg, L. D.(Comprehensive Assessment of Water Management in Agriculture, Colombo, Sri Lanka, 2006)
Penning de Vries, F.W.T.; Acquay, H.; Molden, David; Scherr, Sara J.; Valentin, C.; Cofie, Olufunke O.(Comprehensive Assessment of Water Management in Agriculture, Colombo, Sri Lanka, 2003)