Gibson, Richard W., Byamukama, Emmanuel, Mpembe, Isaac, Kayongo, James and Mwanga, Robert O.M. (2008) Working with farmer groups in Uganda to develop new sweet potato cultivars: decentralisation and building on traditional approaches. Euphytica, 159 (1-2). pp. 217-228. ISSN 0014-2336 (Print), 1573-5060 (Online) (doi:https://doi.org/10.1007/s10681-007-9477-4)