Rujukan Angsa Afrika

    • Ekarius, Carol (2007). Storey's Illustrated Guide to Poultry Breeds. North Adams, MA: Storey Publishing. ISBN 978-1-58017-667-5.
    • "Africans". feathersite.com. Dicapai pada 2008-07-02.
    • American Livestock Breed Conservation Articles: Chinese Geese; African Geese