H. Al-Dabbagh, A., اسماء, M.Yonis, G., غادة, Adel Sabah, O. and عمر (2009) “The effects of stress to the occupations of Internal environment”, Al-Rafidain Engineering Journal (AREJ), 17(1), pp. 54–67. doi: 10.33899/rengj.2009.38681.