Al-Zaidy, M., and K. Al-Nasser. “Using of Taguchi Model in Estimating Hidden Cost of Deviation from Target Quality Specifications With the Application on the Textile Factory in Mosul”. TANMIYAT AL-RAFIDAIN, vol. 31, no. 94, June 2009, pp. 219-33, doi:10.33899/tanra.2009.161819.