“Layout of the Administrative Offices at the College of Adminstration and Economics - University Of Diyala Using Matrix Relations” (2021) Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), 40(2), pp. 141–166. doi:10.55562/jrucs.v40i2.197.