The World Bank.Архивная копия от 4 марта 2016 на Wayback Machine Assessment of Localities’ Compliance with Minimum Qualifying Criteria and Identification of their Capacity Needs in
Northern Sudan, World Bank/LICUS. Kassala на сайте siteresources.worldbank.org
The World Bank.Архивная копия от 4 марта 2016 на Wayback Machine Assessment of Localities’ Compliance with Minimum Qualifying Criteria and Identification of their Capacity Needs in
Northern Sudan, World Bank/LICUS. Kassala на сайте siteresources.worldbank.org