Jamal Nasser Faisal Al-Shammari, and Thaer Sabri Mahmoud Al-Ghabban. “The Possibility of Applying the Hybrid System to Reduce the Costs of Industrial Units (Applied Research in the General Company for Textile and Leather Industries / Textile Factory / Hilla)”. Journal of Madenat Alelem University College, Vol. 14, no. 1, June 2022, pp. 132-51, http://116.203.176.164/index.php/JMAUC/article/view/442.