AL-Ridha, Ahmed S.D, Firas Saeed Abbas, Hamid Abdul Mahdi Faris, Layth Sahib Dheyab, Eng. Hameed Zaier Ali, and Eng. Mohammed Sabah Mohialdeen. 2022. “THE INFLUENCE OF CHOPPED COPPER FIBRE (CF) ON THE IMPROVEMENT OF PURE GYPSUM BY COMPRESSIVE STRENGTH”. Journal of Applied Engineering Science 20 (2): 546-51. https://doi.org/10.5937/jaes0-33435.