Richie I. Umasabor and Effort O. Osayogie. Effect of Coarse Aggregate Sizes on the Compressive Strength of Concrete using Response Surface Methodology. JSTR [Internet]. 2020 Mar. 2 [cited 2024 Dec. 22];2(1). Available from: https://journals.nipes.org/index.php/njstr/article/view/90