Bibliography
- http://www.bbc.co.uk/bitesize/ks3/history/middle_ages/feudal_system_domesday_book/revision/1/
- http://www.historyonthenet.com/medieval_life/feudalism.htm
- http://www.lordsandladies.org/farming-middle-ages.htm
- http://athycollegehistory.weebly.com/a-craftsman-in-a-medieval-town.html
- http://www.lordsandladies.org/knights-code-of-chivalry.htm
- http://www.lordsandladies.org/middle-ages-knights.htm
- http://www.ducksters.com/history/middle_ages/becoming_a_medieval_knight.php
- http://westernreservepublicmedia.org/middleages/feud_peasants.htm
- http://westernreservepublicmedia.org/middleages/feud_knights.htm