Annika Kramer: Managing Freshwater Ecosystems of International Water Resources – The Case of the Maputo River in Mozambique. Working Paper, 2003 (online).
books.google.com
Olcay Ünver (Hrsg.): The United Nations World Water Development Report 3: Facing the Challenges. Earthscan for World Water Assessment Programme, UNESCO, London 2009, ISBN 978-1-84407-840-0, Swaziland, S.9 (google.com).
