Mail, A., Ebang, Fauf, N. and Fachry Hafid, M. 2022. Composition Analysis of Perforated Concrete Roster Raw Materials To Improve Product Compressive Strength Using Experimental Design Approach. Journal of Industrial System Engineering and Management. 1, 1 (Mar. 2022), 27–35. DOI:https://doi.org/10.56882/jisem.v1i1.5.