[1]
H. Nonga, R. Mdegela, E. Lie, M. Sandvik, and J. Skaare, “Socio-economic values of wetland resources around Lake Manyara, Tanzania: assessment of environmental threats and local community awareness on environmental degradation and their effects”, J. Wetlands Ecol., vol. 4, pp. 83–101, Jan. 2011.