English: Map of the Hammadid realm (green) and their neighbours, with extended or maximal territories in dotted line (controlled in different periods, mostly during the reign of al-Nasir).

The original file cited these as sources:

• Peter Slugett & Andrew Currie (2014), Atlas of Islamic History, p.27-30
• Mouloud Gaïd, Les Berbères dans l'histoire, De Ziri à Hammad, Ch VIII: Domaine des Beni Hammad
• Mahfoud Kaddache, L'Algérie médiévale, p.
• Mohand Akli Haddadou, Guide de la culture et de la langue berbères, p.

My own addendum to these sources:

• In Peter Slugett & Andrew Currie (2014), "Atlas of Islamic History", see instead Maps 14, 17, and 26 (pp. 31, 34, 48)
• For a written description of Hammadid territories, see also:
  • Amar S. Baadj (2015), "Saladin, the Almohads and the Banū Ghāniya: The Contest for North Africa (12th and 13th centuries). pp. 41-42.
  • Hsain Ilahiane (2006), "Historical Dictionary of the Berbers (Imazighen)", pp. 55–56.
  • Phillip C. Naylor (2015), "Historical Dictionary of Algeria", p. 288.