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This is to certify that your paper entitled «Synthesis of Pyrazolopyranopyrimidine and Dihydropyrano[۲,۳-c]pyrazole Derivatives using Vitamin D as an Efficient Catalyst under Green Condition» was indexed with 15 pages, in the CIVILICA citation database, code COI:JR_JACR-17-1_005, after evaluation and approval of the referees of the "Journal of Advances in Computer Research Vol 17, Issue 1 , Year 2024.

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.