Silas, E.O. Onwuka, D. O. , Njoku F.C 2022. Factorial Model Prediction for Performance of Ordinary Portland Cement Blended with Metakaolin and Sawdust Ash for Oil Well Cementing. NIPES - Journal of Science and Technology Research. 4, 2 (Jun. 2022). DOI:https://doi.org/10.37933/nipes/4.2.2022.7.