Better preparation for the changes of livelihoods of ethnic minorities: Case study of the Lower Sesan 2 hydropower dam in Cambodia - Samonn, Mith; Mak Soeun; Sameng Keomonine; Khean, Sovannara; Say, Tom; Hou Sopour; Senaratna Sellamuttu, Sonali (CGIAR Challenge Program on Water and Food, 2011)