Ubi, S., Nkra, P., Agbor, R., Ewa, D., & Nuchal, M. (2020). EFFICACY OF BASALT AND GRANITE AS COARSE AGGREGATE IN CONCRETE MIXTURE. International Journal of Engineering Technologies and Management Research, 7(9), 1–9. https://doi.org/10.29121/ijetmr.v7.i9.2020.769