صادق عبد العزيز مهدي. “The Sufficient and Necessary Conditions on Group G So That U Is Locally Finite and Finitely Generated ”. Journal of Madenat Alelem University College, Vol. 2, no. 1, June 2010, pp. 66-71, http://116.203.176.164/index.php/JMAUC/article/view/288.