Siege
Explorations in Empire, Pre-Modern Imperialism Tutorial: the Mongols. University of Wisconsin-Madison. Archived from the original on 18 May 2008.
Ostwald, Jamel (2007). Vauban Under Siege: Engineering Efficiency and Martial Vigor in the War of the Spanish Succession. History of Warfare. Vol. 41 (illustrated ed.). Brill. ISBN 978-90-04-15489-6.
Warner, Philip (1968). Sieges of the Middle Ages. G. Bell & Sons.
Historiography

Bachrach, Bernard S (1994). "Medieval siege warfare: a reconnaissance". Journal of Military History. 58 (1): 119–133. doi:10.2307/2944182. JSTOR 2944182.

External links: 
Native American Siege Warfare.
Siege Kits
Scenes of Siege Warfare
Three ancient Egyptian Sieges: Megiddo, Dapur, Hermopolis
The Siege Of The City Archived 30 July 2008 at the Wayback Machine Biblical perspectives.
Secrets of Lost Empires: Medieval Siege (PBS) Informative and interactive webpages about medieval siege tactics.