“The Role of Lean Maintenance in Improving Productivity: An Analytical Study of A Sample of Employees in Abu Ghraib Dairy Factories”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 55, no. 1 (September 28, 2024): 16–32. Accessed August 30, 2026. https://jrucs.iq/index.php/JAUCS/article/view/668.