Journal Article
Mkumbira, Jonathan, Linley Chiwona-Karltun, Ulf Lagercrantz, Nzola Meso Mahungu, John Saka, Albert Mhone, Mpoko Bokanga, Leon Brimer, Urban Gullberg, and Hans Rosling.
"Classification of cassava into ‘bitter’and ‘cool’in Malawi: From farmers' perception to characterisation by molecular markers." Euphytica 132, no. 1 (2003): 7-22.