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This is to certify that your paper entitled «Formulation and In-Vitro Evaluation of Ibuprofen Emulgel using Zingiber officinale Roscoe and Nigella sativa L. as a Natural Excipient» was indexed with 6 pages, in the CIVILICA citation database, code COI:JR_JJMPB-15-4_008, after evaluation and approval of the referees of the "Journal of Medicinal Plants and By-products Vol 15, Issue 4 , 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.