Luther, R. P. Y., I. Y. Muhammad, N. Usman, A. S. Abdulazeez, A. M. Kolawole, and S. M. Olawale. “EXPERIMENTAL INVESTIGATION OF THE STRENGTH PROPERTIES OF CONCRETE PRODUCED WITH VOLCANIC ASH AND METAKAOLIN AS PARTIAL REPLACEMENT OF CEMENT”. FUDMA JOURNAL OF SCIENCES, Vol. 9, no. 6, June 2025, pp. 90 -97, doi:10.33003/fjs-2025-0906-3545.