2021. The Use of Principal Axis Method in Study of Living Conditions for the Displaced in Iraq. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ). 46, 1 (Oct. 2021), 156–178. DOI:https://doi.org/10.55562/jrucs.v46i1.74.