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This is to certify that your paper entitled «Photochemical activity of Phlomis tuberosa leaves under water stress» was indexed with 10 pages, in the CIVILICA citation database, code COI:ICSDA05_019, after evaluation and approval of the referees of the "5th International Congress of Developing Agriculture, Natural Resources, Environment and Tourism of Iran held in Tabriz 2021.

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 conference 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.