“A Study of some functions & factors that effecting on production plans implementation(Case study in Fans plant in state Company for Electrical Industries)” (2021) Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), 27(1), pp. 231–300. doi:10.55562/jrucs.v27i1.417.