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This is to certify that your paper entitled «Clustering and Ranking of Provinces in Terms of Investment Security Based on Multi-Criteria Multi-Period Decision-Making» was indexed with 23 pages, in the CIVILICA citation database, code COI:JR_JEMSC-12-2_007, after evaluation and approval of the referees of the "The Journal of Engineering and Soft Computing Management Vol 12, Issue 2 , Year 2026.

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.