UGULUMU, E. S.; INANGA, E. L. Tanzania’s small-scale sunflower farmers: Upgrading the value chain. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 10, n. 1, p. 126–145, 2013. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1339. Acesso em: 23 jul. 2024.