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This is to certify that your paper entitled «Experimental Examination of The Effect of Length and Percentage of Steel Fibers on The Tension and Compression Strengths of Concrete» was indexed with 10 pages, in the CIVILICA citation database, code COI:JR_JCEMA-5-4_005, after evaluation and approval of the referees of the "Journal of Civil Engineering and Materials Application Vol 5, Issue 4 , Year 2022.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.