A. S. AL-Ridha, F. S. Abbas, . H. A. M. Faris, L. S. Dheyab, E. H. Z. Ali, and E. M. S. Mohialdeen, “THE INFLUENCE OF CHOPPED COPPER FIBRE (CF) ON THE IMPROVEMENT OF PURE GYPSUM BY COMPRESSIVE STRENGTH”, JAES, vol. 20, no. 2, pp. 546–551, Mar. 2022, doi: 10.5937/jaes0-33435.