Thafer Ramathan Muttar AL-Badrany and Takwa Abdulsalam Taha AL-Mola 2023. A comparison Between Principal Component Regression and Partial Least Squares Regression Methods with application in The Kirkuk Cement . Tikrit Journal of Pure Science. 21, 7 (Feb. 2023), 185–203. DOI:https://doi.org/10.25130/tjps.v21i7.1126.