This paper compared PRA methods and a household sample survey for eliciting economic data on the use of Ilala palm (Hyphaene petersiana), an important non-timber forest product resource for livelihoods in south-eastern Zimbabwe.
Participatory Learning and Action Notes 36. October 1999. pp. 34-40. Sustainable Agriculture and Rural Livelihoods Programme, International Institute for Environment and Development (IIED). London, UK.