UNDERHILL, L. G.; BROOKS, M. SABAP2 after nine years, mid 2007 - mid 2016: coverage progress and priorities for the Second Southern African Bird Atlas Project. Biodiversity Observations, [S. l.], v. 7, p. 1–17, 2016. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/330. Acesso em: 21 oct. 2021.